Exhibit 10.21
                                                                   -------------

                        FIRST AMENDED SECURITY AGREEMENT

Date:    Originally dated April 2002 and amended July 29, 2003

Debtor:  BPK Resources, Inc. (f/k/a Bepariko Biocom), a Nevada corporation

Debtor's Mailing Address:  One Belmont Ave, GSB Building, Suite 417 Bala Cynwyd,
                           PA 19004

Secured Party:   Trident Growth Fund, L.P (f/ka Gemini Growth Fund, L.P.)

Secured Party's Mailing Address:   700 Gemini, Houston, TX 77058

Classification of Collateral:  Accounts,  contract rights, property,  equipment,
inventory,  general intangibles,  instruments,  deposit accounts, chattel paper,
leases, mineral right and all other assets.

Collateral  (including all accessions):  Accounts,  contract  rights,  property,
equipment,  inventory,  general  intangibles,   instruments,  deposit  accounts,
chattel paper, leases, mineral rights and all other assets.

     a)   All  attachments,   accessions  accessories,  tools,  parts  supplies,
          increases,  and additions to and all replacements of and substitutions
          for any property described above.

     b)   All  products  and produce of any of the  property  described  in this
          Collateral section.

     c)   All accounts,  contracts  rights,  general  intangibles,  intellectual
          property,  instruments, rents, monies, payments, and all other rights,
          arising  out of a sale,  lease,  or  other  disposition  of any of the
          property described in this Collateral section.

     d)   All   proceeds   (including   insurance   proceeds)   from  the  sale,
          destruction,  loss,  or  other  deposition  of  any  of  the  property
          described in this Collateral section.

Obligation:  Convertible Note and any, and all other  indebtedness,  liabilities
and  obligations  of the Debtor to the  Secured  Party now owing or  hereinafter
incurred.

     Date:         April 2002 and July 29, 2003

     Amount:       $2,100,000

     Maker:        BPK Resources, Inc.

     Payee:        Trident Growth Fund, LP

     Final Maturity Date: As provided therein

     Terms of Payment (optional): As provided therein

Debtor grants to Secured Party a security interest in the Collateral and all its
proceeds  to secure  payment and  performance  of  Debtor's  obligation  and all
renewals and extensions of any of the obligation.

Debtor's Warranties:

1.   Ownership.  Debtor owns the  collateral and has the authority to grant this
     security interest.



2.   Fixtures and Accessions.  None of the collateral is affixed to real estate,
     is an  accession to any goods,  is  commingled  with other  goods,  or will
     become a fixture,  accession, or part of a product or mass with other goods
     except as expressly provided in this agreement.

3.   Financial  Statements.  All information about Debtor's financial  condition
     provided  to Secured  Party was  accurate  when  submitted,  as will be any
     information subsequently provided.

Debtor's Covenants:

1.   Protection of  Collateral.  Debtor will defend the  collateral  against all
     claims and demands adverse to Secured Party's  interest in it and will keep
     it free  from all  liens  except  those  for taxes not yet due and from all
     security  interests except this one. The collateral will remain in Debtor's
     possession  or control at all times,  except as otherwise  provided in this
     agreement.  Debtor will  maintain  the  collateral  in good  condition  and
     protect  it  against  misuse,  abuse,  waste and  deterioration  except for
     ordinary wear and tear resulting from its intended use.

4.   Secured  Party's  Costs.  Debtor will pay all expenses  incurred by Secured
     Party in obtaining,  preserving,  perfecting,  defending and enforcing this
     security  interest or the  collateral  and in  collecting  or enforcing the
     Obligation.  Expenses  for  which  Debtor is  liable  include,  but are not
     limited to, taxes, assessments, reasonable attorney's fees, and other legal
     expenses.  These  expenses will bear interest from the dates of payments at
     the  highest  rate  stated in notes  that are part of the  obligation,  and
     Debtor will pay Secured  Party this  interest on demand at a time and place
     reasonably  specified by Secured Party. These expenses and interest will be
     part of the obligation and will be recovered as such in all respects.

5.   Additional  Documents.  Debtor  will sign any  papers  that  Secured  Party
     considers necessary to obtain, maintain, and perfect this security interest
     or to comply with any relevant law.

6.   Notice of Changes.  Debtor will  immediately  notify  Secured  Party of any
     material  change in the  collateral  other than in the  ordinary  course of
     business;  change in Debtor's  name,  address,  or location;  change in any
     matter  warranted or represented in this agreement;  change that may affect
     this security interest; and any event of default.

7.   Use and Removal of  Collateral.  Debtor will use the  collateral  primarily
     according  to the  stated  classification  unless  Secured  Party  consents
     otherwise in writing.  Debtor will not permit the  collateral to be affixed
     to any real estate,  to become an accession to any goods,  to be commingled
     with other goods, or to become a fixture,  accession,  or part of a product
     or mass with other goods except as expressly  provided in this agreement or
     in the ordinary course of business.

8.   Sale.  Debtor will not sell,  transfer,  or encumber any of the  collateral
     without  the prior  written  consent  of  Secured  Party  other than in the
     ordinary course of business.

9.   If  requested  by Secured  Party,  debtor will  receive and use  reasonable
     diligence to collect all  accounts,  accounts  receivable,  chattel  paper,
     instruments, documents and general intangibles, deposit accounts, in trust,
     and to be held as property of the Secured Party, and to immediately endorse
     as  appropriate  and deliver such rights to payment and proceeds to Secured
     Party daily in the exact form in which they are  received  together  with a
     collection report in a form satisfactory to Secured Party.

10.  Debtor  agrees  not  to  commingle  the  rights  to  payment,  proceeds  or
     collections thereunder with other property.



11.  Debtor agrees,  with regard to the  collateral  and proceeds,  from time to
     time when  reasonably  requested by Secured Party, to prepare and deliver a
     schedule of all  collateral  and proceeds  subject to this agreement and to
     assign in writing and  deliver to secured  party all  accounts,  contracts,
     leases and other chattel paper, instruments,  documents and other evidences
     thereof.

12.  Debtor  agrees  with  regard to the  collateral  and  proceeds in the event
     secured  party elects to receive  payments of rights to payment or proceeds
     hereunder,  to pay all  reasonable  expenses  incurred by secured  party in
     connection   therewith,   including   reasonable  expenses  of  accounting,
     correspondence,  collection  efforts,  reporting  to  account  or  contract
     debtors, filing, recording, record keeping and expenses incidental thereto.

Rights and Remedies of Secured Party:

1.   Generally.  Secured  Party may exercise the  following  rights and remedies
     after default:

     a)   take control of any proceeds of the collateral;

     b)   release any  collateral in Secured  Party's  possession to any debtor,
          temporarily or otherwise;

     c)   take control of any funds generated by the collateral, such as refunds
          from and proceeds of insurance,  and reduce any part of the obligation
          accordingly  or permit  Debtor to use such  funds to repair or replace
          damaged or destroyed collateral covered by insurance; and

     d)   demand, collect,  convert,  redeem, settle,  compromise,  receipt for,
          realize on, adjust, sue for, and foreclose on the collateral either in
          Secured Party's Debtor's name, as Secured Party desires.

Events of Default:  Each of the  following  conditions is an Event of Default if
not cured within an  applicable  cure or grace period under any Loan Document by
and between Secured Party and Debtor:

1.   if Debtor  defaults in timely  payment or  performance  of any  obligation,
     covenant,  or liability in any written agreement between Debtor and Secured
     Party or in any other transaction secured by this agreement;

2.   if any warranty,  covenant or representation made to Secured Party by or on
     behalf of Debtor  proves to have been false in any  material  respect  when
     made;

3.   if a receiver is appointed for Debtor or any of the collateral;

4.   if the  collateral  is  assigned  for the benefit of  creditors  or, to the
     extent permitted by law, if bankruptcy or insolvency  proceedings  commence
     against or by any of these parties: Debtor; any partnership of which Debtor
     is a general partner; and any maker, drawer, acceptor, endorser, guarantor,
     surety,  accommodation  party, or other person liable on or for any part of
     the obligation;

5.   if any financing statement regarding the collateral but not related to this
     security and not favoring Secured Party is filed;

6.   if any lien attaches to any of the collateral;

7.   if any material  amount of the  collateral  is lost,  stolen,  damaged,  or
     destroyed,  unless it is promptly  replaced with collateral of like quality
     or restored to its former condition.



8.   Secured party reasonably by and in good faith,  believes that any or all of
     the  collateral  and/or  proceeds  to be  danger  of  misuse,  dissipation,
     commingling,  loss, theft, damage or destruction,  or otherwise in jeopardy
     or unsatisfactory in character or value.

Remedies of Secured Party on Default:

1.   During the existence of any event of default, Secured Party may declare the
     unpaid  principal and earned interest of the obligation  immediately due in
     whole or part, enforce the obligation, and exercise any rights and remedies
     granted by the Uniform Commercial Code or by this agreement,  including the
     following:

     a)   require  Debtor to  deliver  to  Secured  Party all books and  records
          relating to the collateral;

     b)   require  Debtor to assemble  the  collateral  and make it available to
          Secured Party at a place reasonably convenient to both parties;

     c)   take  possession of any of the  collateral  and for this purpose enter
          any premises where it is located if this can be done without breach of
          the peace;

     d)   sell,  lease, or otherwise  dispose of any of the collateral in accord
          with the  rights,  remedies,  and  duties  of a  secured  party  under
          chapters 2 and 9 of the Texas Uniform  Commercial Code after notice as
          required by those chapters; unless the collateral threatens to decline
          speedily in value,  is  perishable,  or would  typically  be sold on a
          recognized market, Secured Party will give Debtor reasonable notice of
          any public sale of the  collateral  or of a time after which it may be
          otherwise disposed of without further notice to Debtor; in this event,
          notice will be deemed reasonable if it is mailed,  postage prepaid, to
          Debtor at the address  specified  in this  agreement at least ten days
          before any public sale or ten days before the time when the collateral
          may be otherwise disposed of without further notice to Debtor; in this
          event,  notice  will be deemed  reasonable  if it is  mailed,  postage
          prepaid, to Debtor at the address specified in this agreement at least
          ten days before any private sale or ten days before any public sale or
          ten days before time when the collateral may be otherwise  disposed of
          without further notice to Debtor;

     e)   surrender any insurance  policies  covering the collateral and receive
          the unearned premium;

     f)   apply any proceeds from disposition of the collateral after default in
          the manner  specified  in chapter 9 of the  Uniform  Commercial  Code,
          including  payment of Secured Party's  reasonable  attorney's fees and
          court expenses; and

     g)   if disposition of the  collateral  leaves the obligation  unsatisfied,
          collect the deficiency from Debtor.

General Provisions

1.   Parties Bound.  Secured  Party's rights under this agreement shall inure to
     the benefit of its  successors  and assigns.  Assignment of any part of the
     obligation and delivery by Secured Party of any part of the collateral will
     fully  discharge  Secured  Party from  responsibility  for that part of the
     collateral.  If  Debtor  is  more  than  one,  all  their  representations,
     warranties,  and  agreements  are joint and several.  Debtor's  obligations
     under  this  agreement  shall  bind  Debtor's   personal   representatives,
     successors, and assigns.



2.   Waiver.  Neither  delay in  exercise  nor  partial  exercise of any Secured
     Party's  remedies or rights shall waive further  exercise of those remedies
     or rights.  Secured Party's failure to exercise remedies or rights does not
     waive  subsequent  exercise of those  remedies or rights.  Secured  Party's
     waiver of any  default  does not waive  further  default.  Secured  Party's
     waiver of any right in this  agreement or of any default is binding only if
     it is in writing. Secured Party may remedy any default without waiving it.

3.   Reimbursement.  If Debtor  fails to perform  any of  Debtor's  obligations,
     Secured Party may perform those  obligations and be reimbursed by Debtor on
     demand  at the  place  where  the  note is  payable  for any  sums so paid,
     including attorney's fees and other legal expenses,  plus interest on those
     sums from the dates of payment at the rate stated in the note for  matured,
     unpaid amounts.  The sum to be reimbursed shall be secured by this security
     agreement.

4.   Interest Rate.  Interest  included in the  obligation  shall not exceed the
     maximum  amount of nonusers  interest  that may be contracted  for,  taken,
     reserved,  charged,  or received  under law; any interest in excess of that
     maximum  amount shall be credited to the principal of the obligation or, if
     that has been paid, refunded.  On any acceleration or required or permitted
     prepayment   of  the   obligation,   any  such  excess  shall  be  canceled
     automatically  as of the  acceleration  or prepayment  or, if already paid,
     credited on the  principal  amount of the  obligation  or, if the principal
     amount has been paid or refunded. This provision overrides other provisions
     in this and all other instruments concerning the obligation.

5.   Modifications. No provisions of this agreement shall be modified or limited
     except by written agreement.

6.   Severability.  The unenforceability of any provision of this agreement will
     not effect the enforceability or validity of any other provision.

7.   After-Acquired  Consumer  Goods.  This  security  interest  shall attach to
     after-acquired consumer goods only to the extent permitted by law.

8.   Applicable Law. This agreement will be construed according to Texas laws.

9.   Place of  Performance.  This  agreement is to be performed in the county of
     Secured Party's mailing address.

10.  Financing Statement. A carbon, photographic,  or other reproduction of this
     agreement or any financing  statement covering the collateral is sufficient
     as a financing statement.

11.  Presumption of Truth and Validity. If the collateral is sold after default,
     recitals  in the bill of sale or transfer  will be prima facie  evidence of
     their truth, and all  prerequisites to the sale specified by this agreement
     and by the Texas Uniform Commercial Code will be presumed satisfied.

12.  Singular and Plural. When the context requires, singular nouns and pronouns
     include the plural.

13.  Priority of Security Interest.  Neither extensions of any of the obligation
     nor releases of any of the collateral  will affect the priority of validity
     of this security interest with reference to any third person.



14.  Cumulative Remedies. Foreclosure of this security interest by suit does not
     limit secured Party's remedies,  including the right to sell the collateral
     under the terms of this  agreement.  All  remedies of Secured  Party may be
     exercised at the same or different  times, and no remedy shall be a defense
     to any other. Secured Party's rights and remedies include all those granted
     by law or otherwise, in addition to those specified in this agreement.

15.  Agency.  Debtor's appointment of Secured Party as Debtor's agent is coupled
     with an interest and will survive any disability of Debtor.

16.  Attachments Incorporated.  The addendum indicated below is attached to this
     agreement and incorporated into it for all purposes:

     a)   ( ) addendum  relating  to  accounts,  inventory,  documents,  chattel
              paper, and general intangibles

     b)   ( ) addendum relating to instruments


Secured Party



By: /s/ Scott Cook
    --------------------

Debtor:

BPK Resources, Inc.


By: /s/ Cecile Coady
    --------------------
     Cecile Coady
     Title: