UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934

                               (Amendment No. 17)*



                          AEOLUS PHARMACEUTICALS, INC.
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                                (Name of Issuer)

                     Common stock, $.01 par value per share
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                         (Title of Class of Securities)

                                    00765G109
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                                 (CUSIP Number)


                                         with copy to:
  Xmark Opportunity Partners, LLC        Lowenstein Sandler PC
  90 Grove Street, Suite 201             1251 Avenue of the Americas, 18th Floor
  Ridgefield, Connecticut 06877          New York, New York 10020
  Attention: Ms. Mary L. King            Attention: Peter D. Greene, Esq.
  (203) 588-2808                         (646) 414-6908
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                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 October 6, 2009
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             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule l3G to report
the  acquisition  that is the subject of this  Schedule  13D, and is filing this
schedule  because of Sections 240.13d-1(e), 240.13d-1(f)  or 240.13d-1(g), check
the following box. [  ]

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits.  See Section 240.13d-7 for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).




Cusip No.       00765G109
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1.  Names of Reporting Persons.  I.R.S. Identification Nos. of above persons
    (entities only):
               Xmark Opportunity Partners, LLC
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2.  Check the Appropriate Box if a Member of a Group (See Instructions):
         (a)   Not
         (b)   Applicable
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3.  SEC Use Only

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4.  Source of Funds (See Instructions):  AF
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5.  Check if Disclosure  of Legal Proceedings Is Required Pursuant to Items 2(d)
    or 2(e):               Not Applicable
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6.  Citizenship or Place of Organization:   State of Delaware

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    Number of                      7. Sole Voting Power:             36,620,453*
                                     -------------------------------------------
    Shares Beneficially            8. Shared Voting Power:
                                     -------------------------------------------
    Owned by
    Each Reporting                 9. Sole Dispositive Power:        35,620,453*
                                      ------------------------------------------
    Person With                    10. Shared Dispositive Power:
                                      ------------------------------------------
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11. Aggregate Amount Beneficially Owned by Each Reporting Person:   36,620,453*

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12. Check if  the Aggregate  Amount in  Row (11) Excludes  Certain  Shares  (See
    Instructions):         [ x ]*
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13. Percent of Class Represented by Amount in Row (11):    67.4%*
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14. Type of Reporting Person (See Instructions):  IA
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* Xmark Opportunity Partners, LLC ("Opportunity Partners") is the sole member of
the  investment  manager of Xmark  Opportunity  Fund,  L.P., a Delaware  limited
partnership  ("Opportunity  LP"),  and Xmark  Opportunity  Fund,  Ltd., a Cayman
Islands exempted company  ("Opportunity  Ltd"), and, as such, possesses the sole
power to vote and the sole power to direct the  disposition of all securities of
Aeolus  Pharmaceuticals,  Inc., a Delaware corporation (the "Company"),  held by
Opportunity  LP and  Opportunity  Ltd.  Opportunity  Partners is the  investment
manager of Xmark JV  Investment  Partners,  LLC, a  Delaware  limited  liability
company ("JV Partners"),  and, as such, possesses the sole power to vote and the
sole power to direct the disposition of all securities of the Company held by JV
Partners.  Mr.  Mitchell  D. Kaye and Mr.  David C.  Cavalier,  the  Co-Managing
Members of Xmark Capital Partners,  LLC, a Delaware limited  liability  company,
the Managing Member of Opportunity Partners,  share voting and dispositive power
with respect to all securities of the Company  beneficially owned by Opportunity
Partners.  Collectively,  Opportunity LP and  Opportunity Ltd hold a majority of
the  membership  interests  in  Goodnow  Capital,  L.L.C.,  a  Delaware  limited
liability company ("Goodnow"),  and, as such, Opportunity Partners possesses the
sole  power  to vote  and the  sole  power  to  direct  the  disposition  of all
securities of the Company held by Goodnow.





As of  January  28,  2010  (the  "Filing  Date"),  Opportunity  LP (A)  held (i)
7,957,264  shares of the Company's  common stock,  $.01 par value per share (the
"Common Shares"),  which includes 1,276,435 Common Shares held by Goodnow,  (ii)
warrants to purchase up to 13,768,928 Common Shares at an exercise price of $.28
per Common Share and (iii) a call option to acquire up to  1,767,857  units (the
"October 2009 Units") at a call option  exercise  price of $.28 per October 2009
Unit (each  October 2009 Unit is comprised of one (1) Common Share and a warrant
to purchase two (2) Common Shares at a warrant exercise price of $.28 per Common
Share, upon issuance,  each October 2009 Unit is immediately separable) (the "LP
Call Option") and (B) is subject to a put option that requires Opportunity LP to
purchase  up to  1,767,857  October  2009  Units,  less any  October  2009 Units
purchased  pursuant to the LP Call  Option,  at a purchase put price of $.28 per
October  2009  Unit.  As of the  Filing  Date,  Opportunity  Ltd  held  (A)  (i)
17,054,524  Common  Shares,  which  includes  3,300,653  Common  Shares  held by
Goodnow, (ii) warrants to purchase up to 29,345,357 Common Shares at an exercise
price  of $.28 per  Common  Share  and  (iii) a call  option  to  acquire  up to
4,125,000 October 2009 Units (the "Ltd Call Option") and (B) is subject to a put
option that requires  Opportunity  Ltd to purchase up to 4,125,000  October 2009
Units, less any October 2009 Units purchased pursuant to the Ltd Call Option, at
a put purchase  price of $.28 per October 2009 Unit.  As of the Filing Date,  JV
Partners  held (i)  1,023,731  Common Shares and (ii) warrants to purchase up to
500,000  Common  Shares  at an  exercise  price of $.28 per  Common  Share.  The
warrants  described in this  paragraph,  including  the  warrants  that could be
acquired as a result of  purchasing  the October  2009  Units,  each  contain an
issuance limitation  prohibiting the holder from exercising such warrants to the
extent that,  after giving effect to such  exercise of the warrants,  the holder
would  beneficially  own more than 9.99% of the Common  Shares  then  issued and
outstanding,  which  prohibition  cannot be  modified  by the holder  before the
sixty-first (61st) day after such holder's notice to the Company of its election
to modify such  prohibition.  The warrants are  exercisable for a seven (7) year
period from their date of issuance,  contain a "cashless  exercise" feature that
allows the holder to exercise the warrants without a cash payment to the Company
under certain circumstances, contain a dividend participation right which allows
the holder to receive  any cash  dividends  paid on the  Common  Shares  without
exercising  the warrant and contain a provision  that provides for the reduction
of the exercise  price to $.01 per Common Share in the event of any such payment
of cash  dividends by the Company or a change of control;  and contain  standard
antidilution  provisions  that provide for the  adjustment of the exercise price
and the number of Common  Shares that can be  purchased  in the event of a stock
dividend  or  split,   dividend  payment  or  other  issuance,   reorganization,
recapitalization or similar event.

As of the Filing Date,  Goodnow held 3,529,951  Common Shares in addition to the
(i) 1,276,435 Common Shares held by Goodnow but attributed to Opportunity LP and
(ii) 3,300,653  Common Shares held by Goodnow but attributed to Opportunity Ltd.
As of the Filing  Date,  Opportunity  Partners  had the right to vote  1,000,000
Common Shares pursuant to a Voting Trust Agreement,  dated as of April 19, 2004,
as amended,  by and among  Opportunity  Partners  and the holders of such Common
Shares.  As of the Filing Date,  Mr.  Cavalier held options to purchase  172,750
Common  Shares  and  162,126  of  such  options  are  currently  exercisable  or
exercisable within sixty (60) days after the Filing Date.

Based upon information received from the Company on January 27, 2010, there were
48,264,320  Common  Shares issued and  outstanding  as of January 25, 2010. As a
result of the foregoing,  for purposes of Reg.  Section  240.13d-3,  Opportunity
Partners is deemed to beneficially own 36,620,453  Common Shares or 67.4% of the
Common Shares deemed issued and outstanding as of the Filing Date.

Nothing set forth herein  shall be  construed  as an  admission  by  Opportunity
Partners, or any other person or entity, that Opportunity Partners, or any other
person or entity,  is the  beneficial  owner of any of the Company's  securities
that are  beneficially  owned by any other  person or entity for the purposes of
Section 13(d) of the  Securities  Exchange Act of 1934,  as amended,  or for any
other purposes.





Item 1.   Security and Issuer.
          -------------------

          Item 1 of this Schedule 13D is hereby amended by deleting such item in
its entirety and replacing the following in lieu thereof:

          The class of equity security to which this Schedule 13D relates is the
Common  stock,  $.01 par  value  per  share  (the  "Common  Shares")  of  Aeolus
Pharmaceuticals,  Inc., a Delaware  corporation (the "Company").  The address of
the Company's principal  executive offices is 26361 Crown Valley Parkway,  Suite
150, Mission Viejo, California 92691.


Item 3.   Source and Amount of Funds or Other Consideration.
          -------------------------------------------------

          Item 3 of this Schedule 13D is hereby  amended by adding the following
at the end thereof:

          The amount of funds required (including commissions) by Opportunity LP
and Opportunity Ltd to undertake the open market purchases of Common Shares,  as
more  fully set forth in Item 5 of this  Schedule  13D,  Amendment  No. 17 (this
"Amendment  17"),  was  $10,324  and  $24,090  respectively.  All funds  used to
purchase  the Common  Shares in open market  purchases  came  directly  from the
general funds of Opportunity LP and Opportunity Ltd, as applicable.

          Mr.  Cavalier,  as of the filing of this  Amendment  17, holds options
(the  "Company  Options")  to  purchase  172,750  Common  Shares.  In the period
commencing sixty (60) days prior to October 6, 2009, the date of the event which
required the filing of this  Amendment  17, and ending sixty (60) days after the
filing of this  Amendment  17,  19,312 of the Company  Options  became,  or will
become, exercisable.  Accordingly,  during such period, the beneficial ownership
of the Common Shares, as reported herein, has increased by 19,312 Common Shares.
As of the date of the filing of this Amendment 17, Mr.  Cavalier  holds,  in the
aggregate, 162,126 Company Options which are either currently exercisable by him
or will be  exercisable  by him within sixty (60) days of the date of the filing
of this Amendment 17.

          Pursuant to certain  Senior  Convertible  Notes (the  "Senior  Notes")
issued by the Company to  Opportunity  LP and  Opportunity  Ltd pursuant to that
certain Securities Purchase Agreement, dated as of August 31, 2008, by and among
the Company  and the Funds,  the Company  paid  interest on the Senior  Notes by
issuing to  Opportunity  LP and  Opportunity  Ltd (i)  28,661 and 66,876  Common
Shares  respectively on or about July 31, 2009 and (ii) 11,098 and 25,895 Common
Shares respectively on or about October 6, 2009.

          The amount of funds required by Opportunity LP and  Opportunity Ltd to
undertake  the  purchase  of the  Financing  Units (as defined in Item 5 of this
Schedule  13D),  as more  fully set forth in Item 5 of this  Amendment  17,  was
$495,000 and $1,155,000  respectively.  All funds used to purchase the Financing
Units came  directly from the general funds of  Opportunity  LP and  Opportunity
Ltd, as applicable.

          As more fully set forth in Item 5 of this  Amendment 17, on October 6,
2009,  the  Company  and the Funds  entered  into a series of  transactions  and
noncash  exchanges  of various  securities,  instruments  and other  contractual
rights held by the Funds,  and issued and/or granted by the Company.  See Item 5
of this Schedule 13D, as amended, for additional information.





Item 4.   Purpose of Transaction.
          ----------------------

          Item 4 of this Schedule 13D is hereby amended by deleting such item in
its entirety and replacing the following in lieu thereof:

          The  acquisition  of the  securities  referred  to  herein  is for the
purpose of having the  ability to direct the  strategic  course of the  Company.
Opportunity   Partners  has  no  present  intention  to  direct  the  day-to-day
management and affairs of the Company.  However,  through its ability to elect a
majority of the Board of  Directors  of the Company by virtue of its  beneficial
ownership of the Common Shares,  Opportunity  Partners has the ability,  but not
the present  intention,  to direct the day-to-day  management and affairs of the
Company. Mr. Cavalier is currently the Chairman of the Board of Directors of the
Company.  Other than as described in this Item 4, Opportunity  Partners does not
have any present plans or intentions which relate to, or would result in, any of
the transactions required to be described in Item 4 of Schedule 13D.


Item 5.   Interest in Securities of the Issuer.
          ------------------------------------

          Item 5 of this Schedule 13D is hereby amended by deleting such item in
its entirety and replacing the following in lieu thereof:

          As of January 28, 2010 (the "Filing  Date"),  Opportunity  LP (A) held
(i)  7,957,264  shares of the Company's  common stock,  $.01 par value per share
(the "Common Shares"),  which includes  1,276,435 Common Shares held by Goodnow,
(ii) warrants to purchase up to 13,768,928 Common Shares at an exercise price of
$.28 per Common Share and (iii) a call option to acquire up to  1,767,857  units
(the "October 2009 Units") at a call option  exercise  price of $.28 per October
2009 Unit (each  October  2009 Unit is  comprised  of one (1) Common Share and a
warrant to purchase two (2) Common  Shares at a warrant  exercise  price of $.28
per  Common  Share,  upon  issuance,  each  October  2009  Unit  is  immediately
separable)  (the "LP Call  Option")  and (B) is  subject  to a put  option  that
requires Opportunity LP to purchase up to 1,767,857 October 2009 Units, less any
October 2009 Units purchased  pursuant to the LP Call Option,  at a purchase put
price of $.28 per  October  2009 Unit (the "LP Put  Options").  As of the Filing
Date,  Opportunity  Ltd held (A) (i) 17,054,524  Common  Shares,  which includes
3,300,653  Common  Shares  held by  Goodnow,  (ii)  warrants  to  purchase up to
29,345,357 Common Shares at an exercise price of $.28 per Common Share and (iii)
a call  option to  acquire  up to  4,125,000  October  2009 Units (the "Ltd Call
Option")  and (B) is subject to a put option that  requires  Opportunity  Ltd to
purchase  up to  4,125,000  October  2009  Units,  less any  October  2009 Units
purchased  pursuant to the Ltd Call Option,  at a put purchase price of $.28 per
October 2009 Unit (together with the LP Put Options, the "October Put Options").
As of the Filing Date,  JV Partners  held (i)  1,023,731  Common Shares and (ii)
warrants to purchase up to 500,000  Common  Shares at an exercise  price of $.28
per Common  Share.  The warrants  described  in this  paragraph,  including  the
warrants  that could be acquired  as a result of  purchasing  the  October  2009
Units,  each  contain  an  issuance  limitation   prohibiting  the  holder  from
exercising  such  warrants  to the  extent  that,  after  giving  effect to such
exercise of the warrants,  the holder would  beneficially own more than 9.99% of
the Common  Shares  then issued and  outstanding,  which  prohibition  cannot be
modified by the holder  before the  sixty-first  (61st) day after such  holder's
notice to the Company of its election to modify such  prohibition.  The warrants
are exercisable for a seven (7) year period from their date of issuance, contain
a "cashless  exercise"  feature  that allows the holder to exercise the warrants
without a cash payment to the Company  under  certain  circumstances,  contain a
dividend  participation  right  which  allows  the  holder to  receive  any cash
dividends paid on the Common Shares without exercising the warrant and contain a
provision  that  provides for the  reduction  of the exercise  price to $.01 per
Common Share in the event of any such  payment of cash  dividends by the Company
or a change of  control;  and  contain  standard  antidilution  provisions  that
provide for the adjustment of the exercise price and the number of Common Shares
that can be  purchased  in the  event of a stock  dividend  or  split,  dividend
payment or other issuance, reorganization, recapitalization or similar event.





          As of the  Filing  Date,  Goodnow  held  3,529,951  Common  Shares  in
addition to the (i) 1,276,435  Common  Shares held by Goodnow but  attributed to
Opportunity LP and (ii)  3,300,653  Common Shares held by Goodnow but attributed
to Opportunity Ltd. As of the Filing Date, Opportunity Partners had the right to
vote 1,000,000 Common Shares pursuant to a Voting Trust  Agreement,  dated as of
April 19, 2004, as amended, by and among Opportunity Partners and the holders of
such Common Shares. As of the Filing Date, Mr. Cavalier held options to purchase
172,750  Common Shares and 162,126 of such options are currently  exercisable or
exercisable within sixty (60) days after the Filing Date.

          Based upon information  received from the Company on January 27, 2010,
there were  48,264,320  Common Shares issued and  outstanding  as of January 25,
2010.  As a result of the  foregoing,  for purposes of Reg.  Section  240.13d-3,
Opportunity  Partners is deemed to beneficially own 36,620,453  Common Shares or
67.4% of the Common Shares deemed issued and outstanding as of the Filing Date.

          Nothing  set  forth  herein  shall be  construed  as an  admission  by
Opportunity  Partners, or any other person or entity, that Opportunity Partners,
or any other person or entity,  is the beneficial  owner of any of the Company's
securities  that are  beneficially  owned by any other  person or entity for the
purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or
for any other purposes.

          The following table sets forth open market  purchases of Common Shares
by Opportunity  Partners on behalf of the  applicable  Funds (each of which were
effected  in  ordinary  brokerage  transactions)  occurring  during  the  period
commencing  sixty (60) days prior to the date of the event  which  required  the
filing of this Amendment 17 and ending on the Filing Date:

                   Quantity of                            Price Per Common Share
    Trade Date     Common Shares       Purchaser          including commissions
    ----------     -------------     ---------------      ----------------------

    12/17/2009        6,000          Opportunity LP             $.3538
    12/17/2009       14,000          Opportunity Ltd            $.3538
    12/18/2009        3,000          Opportunity LP             $.3825
    12/18/2009        7,000          Opportunity Ltd            $.3825
    12/21/2009        3,000          Opportunity LP             $.4338
    12/21/2009        7,000          Opportunity Ltd            $.4338
    12/22/2009        3,000          Opportunity LP             $.4150
    12/22/2009        7,000          Opportunity Ltd            $.4150
    12/23/2009        3,000          Opportunity LP             $.4300
    12/23/2009        7,000          Opportunity Ltd            $.4300
    12/24/2009        3,000          Opportunity LP             $.4775
    12/24/2009        7,000          Opportunity Ltd            $.4775
    12/28/2009        3,000          Opportunity LP             $.4750
    12/28/2009        7,000          Opportunity Ltd            $.4750
    12/29/2009          750          Opportunity LP             $.4800
    12/29/2009        1,750          Opportunity Ltd            $.4800

          Mr. Cavalier, as of the Filing Date, holds Company Options to purchase
172,750 Common Shares. In the period commencing sixty (60) days prior to October
6, 2009,  the date of the event which  required the filing of this Amendment 17,
and ending sixty (60) days after the Filing Date,  19,312 of the Company Options
became,  or will  become,  exercisable.  Accordingly,  during such  period,  the
beneficial  ownership of the Common Shares, as reported herein, has increased by
19,312  Common  Shares.  As of the  Filing  Date,  Mr.  Cavalier  holds,  in the
aggregate, 162,126 Company Options which are either currently exercisable by him
or will be exercisable by him within sixty (60) days of the Filing Date.





          Pursuant to the terms and provisions of that certain Senior Notes, the
Company  paid  interest  on the Senior  Notes by issuing to  Opportunity  LP and
Opportunity  Ltd (i) 28,661 and 66,876  Common Shares  respectively  on or about
July 31, 2009 and (ii) 11,098 and 25,895 Common Shares  respectively on or about
October 6, 2009.

          On October 6, 2009, the Company entered into a Securities Purchase and
Exchange  Agreement  (the  "October  2009  Purchase  Agreement")  with the Funds
pursuant to which the parties agreed as follows:

          (1) The Company sold and issued to (i) Opportunity LP, 1,767,867 units
(the  "Financing  Units") for a purchase price of $495,000 and (ii)  Opportunity
Ltd,  4,125,000  Financing  Units  for a  purchase  price  of  $1,155,000.  Each
Financing  Unit is comprised of one (1) Common Share (the "October 2009 Shares")
and a warrant to purchase two (2) Common Shares (the  "October  2009  Warrants")
with an initial exercise price of $.28 per Common Share,  subject to adjustment.
The October 2009 Warrants are exercisable for a seven (7) year period from their
date of issuance;  contain a "cashless  exercise" feature that allows the holder
to exercise  the October  2009  Warrants  without a cash  payment to the Company
under certain circumstances; contain a dividend participation right which allows
the holder to receive  any cash  dividends  paid on the  Common  Shares  without
exercising  the October 2009 Warrants and contain a provision  that provides for
the reduction of the exercise price to $.01 per Common Share in the event of any
such  payment of cash  dividends  by the Company or upon a change of control and
contain  antidilution  provisions  in the  event of a stock  dividend  or split,
dividend payment or other issuance, reorganization,  recapitalization or similar
event.

          (2) The Company  granted to (i) Opportunity LP, the LP Call Option and
(ii) Opportunity  Ltd, the Ltd Call Option.  The LP Call Option and the Ltd Call
Option are  exercisable  at any time, and from time to time, on or prior to June
30, 2010.

          (3) Opportunity LP and Opportunity Ltd, as applicable,  granted to the
Company, the October Put Options. The October Put Options are exercisable by the
Company,  at any  time,  and from time to time,  from June 30,  2010 to July 30,
2010.  However,  each of  Opportunity  LP and  Opportunity  Ltd has the right to
terminate the October Put Options if they  reasonably  determine that a material
adverse  event,  condition  or  circumstance  has  occurred  with respect to the
prospects  of the  Company's  AEOL  10150  drug  candidate  for acute  radiation
syndrome;  provided that the  Company's  failure to receive a grant or financing
shall not,  by  itself,  constitute  a  material  adverse  event,  condition  or
circumstance with respect thereto.

          (4) Opportunity LP and Opportunity Ltd converted $300,000 and $700,000
respectively of the Company's  Senior Notes held by them into Common Shares at a
conversion  rate of $.35 per  Common  Share.  Accordingly,  on  October 6, 2009,
Opportunity  LP received  857,143  Common  Shares and  Opportunity  Ltd received
2,000,000  Common  Shares in exchange  for their  respective  Senior  Notes.  On
December 24, 2009, the Company and the Funds entered into that certain Amendment
Agreement to the  Securities  Purchase and Exchange  Agreement  (the  "Amendment
Agreement"),  the purpose of which was to rectify a misunderstanding between the
parties thereto. As more fully set forth in the Amendment Agreement,  the Senior
Notes should have been  converted at a conversion  rate of $.28 per Common Share
instead of a conversion rate of $.35 per Common Share. Accordingly, and pursuant
to the terms and  provisions of the Amendment  Agreement,  on December 24, 2009,
Opportunity LP was issued 214,286 Common Shares and  Opportunity  Ltd was issued
500,000 Common Shares.

          (5)   Opportunity  LP  and   Opportunity   Ltd  converted  an  option,
respectively  held  by  them  pursuant  to  that  certain  Securities   Purchase
Agreement,  dated as of August 1, 2008,  by and among the parties  thereto  (the





"August 2008 Agreement"), which permitted each of Opportunity LP and Opportunity
Ltd  to  acquire  an  additional  (i)  $1,200,000  and  $2,800,000  face  amount
respectively  of Senior  Notes and (ii)  2,400,000  and  5,600,000  warrants for
Common Shares at a warrant  exercise  price of $.35 per Common Share (subject to
adjustment), into warrants with substantially the same terms as the October 2009
Warrants,  including  an  exercise  price of $.28 per Common  Share  (subject to
adjustment) (the "Note Conversion Warrants").  Accordingly,  on October 6, 2009,
Opportunity  LP and  Opportunity  Ltd were  respectively  issued  4,285,714  and
10,000,000 Note Conversion Warrants.

          (6) The Funds held warrants issued  pursuant to that certain  Purchase
Agreement,  dated as of November  21,  2005,  by and among the parties  thereto,
which such warrants  permitted each of Opportunity  LP,  Opportunity  Ltd and JV
Partners to respectively acquire 660,000, 990,000 and 500,000 Common Shares at a
warrant  exercise price of $.28 per Common Share  (subject to  adjustment)  (the
"2005 Warrants"). In addition,  Opportunity LP and Opportunity Ltd held warrants
issued pursuant to (i) the August 2008 Agreement,  which such warrants permitted
each of Opportunity LP and  Opportunity Ltd to respectively  acquire 600,000 and
1,400,000  Common  Shares at a warrant  exercise  price of $.50 per Common Share
(subject to  adjustment)  (the "Note  Warrants") and (ii) that certain March 30,
2009 Securities Purchase Agreement by and among the parties thereto,  which such
warrants  permitted each of Opportunity LP and  Opportunity  Ltd to respectively
acquire  4,687,500 and 8,705,357  Common Shares at a warrant  exercise  price of
$.35 per Common Share (subject to adjustment) (the "March 2009 Warrants").  Each
of  Opportunity  LP,  Opportunity  Ltd and JV Partners  agreed to convert  their
respective  2005  Warrants,  Note Warrants and March 2009 Warrants into warrants
with  substantially  the same terms as the October 2009  Warrants,  including an
exercise price of $.28 per Common Share  (subject to adjustment)  (the "Exchange
Warrants"). Accordingly, on October 6, 2009, Opportunity LP, Opportunity Ltd and
JV Partners were respectively issued 5,947,500,  11,095,357 and 500,000 Exchange
Warrants in exchange for their respective interests in their 2005 Warrants, Note
Warrants and March 2009 Warrants.

          (7) The Funds were parties to two (2) registration  rights agreements,
one dated  November  21, 2005 and the other dated  March 30,  2009,  pursuant to
which,  among other things, the Company agreed to register for resale, on behalf
of the Funds,  as  applicable,  Common Shares  issuable upon the exchange of the
2005 Warrants and the March 2009 Warrants (the "Old  Registration  Agreements").
The parties agreed to terminate the Old Registration Agreements and enter into a
new  registration  rights  agreement  pursuant  to which the  Company  agrees to
register for resale, on behalf of the Funds, as applicable, the (i) October 2009
Shares and (ii) Common  Shares  issuable  upon the  exercise of the October 2009
Warrants, the Note Conversion Warrants and the Exchange Warrants.

          In the period commencing sixty (60) days prior to October 6, 2009, the
date of the event which  required the filing of this Amendment 17, and ending on
the  Filing  Date,  except  as set  forth in this  Item 5,  there  were no other
transactions in Common Shares or securities  convertible into,  exercisable for,
or exchangeable for, Common Shares, by Opportunity Partners, or any other person
or entity  controlled  by  Opportunity  Partners,  or person or entity for which
Opportunity Partners possesses voting or dispositive control.

          Nothing  set  forth  herein  shall be  construed  as an  admission  by
Opportunity  Partners, or any other person or entity, that Opportunity Partners,
or any other person or entity,  is the beneficial  owner of any of the Company's
securities  that are  beneficially  owned by any other  person or entity for the
purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or
for any other purposes.





Item 6.   Contracts, Arrangements, Understandings or Relationships With
          Respect to Securities of the Issuer.
          -----------------------------------

          Item 6 is hereby amended by adding the following at the end thereof:

          As more fully set forth in Item 5 of this  Schedule 13D, on October 6,
2009, the Company and the Funds entered into the October 2009 Purchase Agreement
as amended by the  Amendment  Agreement.  The  description  of the October  2009
Purchase  Agreement  and the  Amendment  Agreement  set  forth in Item 5 of this
Schedule 13D and this Item 6 are subject to, and qualified in their entirety by,
the  full  text  of the  October  2009  Purchase  Agreement  and  the  Amendment
Agreement, a copy of which are incorporated by reference to this Amendment 17 as
an exhibit pursuant to Item 7 hereof.


Item 7.   Material to be Filed as Exhibits.
          --------------------------------

          Item 7 is hereby amended by adding the following at the end thereof:

          1.        Registration Rights Agreement,  dated as of October 6, 2009,
                    by and among the  Company  and the  Funds,  incorporated  by
                    reference to Exhibit 4.1 to the Current  Report on Form 8-K,
                    dated  October  6,  2009,  filed  by the  Company  with  the
                    Securities and Exchange Commission on October 6, 2009.

          2.        Securities  Purchase  and  Exchange  Agreement,  dated as of
                    October 6,  2009,  by and among the  Company  and the Funds,
                    incorporated  by  reference  to Exhibit  10.1 to the Current
                    Report on Form 8-K,  dated  October  6,  2009,  filed by the
                    Company  with the  Securities  and  Exchange  Commission  on
                    October 6, 2009.

          3.        Form of Warrant,  incorporated  by reference to Exhibit 10.2
                    to the Current  Report on Form 8-K,  dated  October 6, 2009,
                    filed  by the  Company  with  the  Securities  and  Exchange
                    Commission on October 6, 2009.

          4.        Amendment  Agreement to the Securities Purchase and Exchange
                    Agreement,  dated as of December 24, 2009,  by and among the
                    Company and the Funds,  incorporated by reference to Exhibit
                    10.1 to the Current  Report on Form 8-K,  dated December 24,
                    2009,  filed by the Company with the Securities and Exchange
                    Commission on December 28, 2009.







                                   Signature
                                   ---------


          After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

January 28, 2010
                                            XMARK OPPORTUNITY PARTNERS, LLC

                                            By:  Xmark Capital Partners, LLC,
                                                 its Managing Member

                                            By: /s/ Mitchell D. Kaye
                                                --------------------------------
                                                Name:   Mitchell D. Kaye
                                                Title:  Co-Managing Member




  Attention: Intentional misstatements or omissions of fact constitute Federal
                   criminal violations (See 18 U.S.C. 1001).