Document:

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                                                                  EXHIBIT 10.5.1
                                                                  --------------
                             AMENDMENT TO AGREEMENT

     The following provisions are hereby incorporated into, and are hereby made
a part of, that certain Independent Consultant Services Agreement dated
September 1, 2001 (the "Agreement") between EssTec, Inc., a Nevada corporation
("EssTec") and Red Sea , Ltd. ("Consultant") and such provisions shall be
effective as of September 1, 2002 (the "Effective Date").  All capitalized terms
in this Amendment, to the extent not otherwise defined herein, shall have the
meanings assigned to such terms in the Agreement.

1.     EssTec  has  agreed  to  amend  Exhibit  A  of  the agreement as follows.
Therefore,  Exhibit  A  of  the  Agreement is hereby amended to read as follows:
The Consultant shall perform the following services under its consulting
agreement with EssTec date on 1st September, 2001

ACQUISITION STRATEGY
-    Develop acquisition strategy
-    Perform due diligence on potential partners and acquisition targets,
     ranging from a general assessment of potential partners to detailed due
     diligence (financial and operations analyses, cultural and strategic direct
     fit, etc.)
-    Close atleast one acquisition within the 180 days of the Initial Public
     Offering of the EssTec's stock.

DEVELOP ALLIANCE
-    Develop alliance strategy.
-    Develop strategic value preposition and positioning documentation for each
     potential partner.
-    Evaluate the proposed structure and consideration for any relationship, and
     conduct such other analyses and investigations as necessary.
-    Close at least one alliance within the 180 days of the Initial Public
     Offering of the EssTec's stock.

BUSINESS DEVELOPMENT
-    Develop pipeline of prospective customers.
-    Help EssTec in closure of sales.
-    Develop penetration strategy of EssTec's Services in identified markets for
     EssTec's expansions.
-    Establish EssTec's presence in atleast one new market within one year from
     the Initial Public Offering of the EssTec's stocks.

                           [SIGNATURE PAGE FOLLOWS]

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     IN  WITNESS  WHEREOF,  EssTec  has  caused  this  Amendment  to Independent
Consultant  Services  Agreement  to  be  duly  executed  and delivered as of the
Effective  Date.

                                             EssTec:

                                             ESSTEC,  INC.,
                                             a  Nevada  corporation

                                             /s/  Abdul  Saquib
                                             ----------------------------
                                             BY:  Abdul  Latif  Saquib
                                             ITS:  VP  Operations

                                             CONSULTANT:

                                             RED  SEA,  LTD.

                                             /s/  Khalid  El-Saadi
                                             ---------------------------
                                             BY:  Khalid  El-Saadi
                                             ITS:  Director

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                                                                  EXHIBIT 10.8.1
                                                                  --------------

                           SALES AND SERVICE AGREEMENT

     This  Sales  and Service Agreement (this "Agreement") is made this 15th day
of  July  2002,  (the  "Effective  Date)  by  and  between  EssTec  Inc.  (the
"Consultant")  and  Crescent  Diagnostic  Medical  Group  Inc  (the "Customer").

                               A G R E E M E N T:

     1.     SERVICES  TO BE RENDERED.  The Consultant will perform functionality
            -------------------------
development  work  for  the  Customer  for  the  system earlier developed by the
Consultant  for  the  Customer.  The  estimated  time  of  development  of these
functionalities  are  two  months.

     2.     PAYMENT  OF  FEES.  In  consideration  of the Services, the Customer
            ------------------
shall  pay  Consultant,  the fees (the "Fees") of $28,000.  Fifty percent of the
fees  would  be due upon signing of this agreement and the balance would be paid
after  one  month  from  the  date  of  this  agreement

     3.     OWNERSHIP OF WORK. The ownership of  original  source  codes, design
            -----------------
templates,  workflow charts, artwork, including sketches and any other materials
created  in  the  process  of  creating  the  product,  shall  remain  with  The
Consultant.

     4.     INDEMNIFICATION.
            ----------------

           (a)  INDEMNIFICATION  BY  CUSTOMER. The Customer agrees to indemnify,
                 -----------------------------
     defend  and  hold  the  Consultant,  it's  owners and its agents, officers,
     directors,  lawyers,  accountants, and employees, harmless from and against
     any  and  all  losses,  claims,  demands,  damages,  liabilities, costs and
     expenses,  including  but not limited to reasonable attorneys' fees and the
     costs of any legal action arising from Customer's web site(s) or Customer's
     use of the Services. Such indemnification shall include, but not be limited
     to,  claims  for  libel,  slander,  infringement  of  copyright,  theft  of
     misappropriation  of  intellectual  property,  or  unauthorized  use of any
     trademark,  trade  name,  or  service  mark.

          (b)  INDEMNIFICATION  BY  CONSULTANT.  Except  as  otherwise  herein
               -------------------------------
     provided,  the Consultant agrees to indemnify, defend and hold the Customer
     and its agents, officers, directors, lawyers, and accountants harmless from
     and  against  any  and  all  losses, claims, demands, damages, liabilities,
     costs  and  expenses,  including  but not limited to, reasonable attorneys'
     fees  and  costs  of any legal action (but excluding consequential damages)
     arising  from  the Consultant's gross negligence in the course of providing
     the  Services  under  this  agreement.  In  no event will the Consultant be
     liable for lost or damaged data, loss of business, or anticipatory profits,
     or  any other consequential or incidental damages resulting from the use or
     operation  of  the  Services  or  the  maintenance  thereof.

     5.     LIMITATION OF DAMAGES.  The Consultant will endeavor to provide high
            ----------------------
quality  Services  and  a high quality Product.  However, the Consultant is not,
and  will  not  be  responsible  for  any  consequential  or  incidental damages
resulting  from  any  malfunctioning  of  Customer's  web  site  resulting  form
Consultant's  Services,  including,  but  not  limited  to, any interruptions of
service,  or  data loss (including lost transactions) regardless of whether such
damages  arose  from  Consultant's  negligence.  Although  the  Consultant  will
endeavor  to  safeguard  any  data provided by the Customer, the Customer agrees
that  it  is responsible for safeguarding its data, including maintaining backup
data  sets.

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     6.     TERMINATION  OF  AGREEMENT.
            --------------------------

     (a)     MATERIAL  BREACH.  If  either  party  is  in  material  breach this
             -----------------
Agreement,  the non-breaching party may serve the breaching party with a written
notice specifying the material breach and requesting the breaching party to cure
it.  If  the  breaching  party fails to cure the material breach within ten (10)
days after its receipt of the notice, the non-breaching party may terminate this
Agreement  by  sending  a  written notice of termination to the breaching party.
The  termination  of this Agreement shall take effect immediately on the receipt
of  such  notice  of  termination  by  the  breaching  party.

     (b)     TERMINATION  ABSENT A BREACH.  Neither party shall have the ability
             -----------------------------
to  unilaterally  terminate  the  Agreement, except as specifically permitted by
provisions  of  this  Agreement.  A  party  specifically  granted the ability to
terminate  this  Agreement  for any reason not covered by subsection (a) of this
Paragraph,  may  exercise this right by sending the other party a written notice
stating  that  it is terminating the Agreement and citing the specific paragraph
and  subparagraph  providing  the  party  with  the  ability  to  terminate  the
Agreement.  The termination of this agreement shall take effect thirty (30) days
following  the  other  party's receipt of this notice.  This sub-paragraph shall
not  apply  to  any  termination  arising  from  a  material  breach.

     (c)     EFFECT  OF  TERMINATION.  On  any  termination  of  this  Agreement
             ------------------------
pursuant  to  this  paragraph,  the  Consultant  may immediately cease providing
Services to the Customer, and neither party shall have any further obligation to
the  other  under  the  Agreement, provided that neither party shall be relieved
from  any  obligations  or  liabilities arising under the Agreement prior to its
termination.

     7.     WARRANTIES;  LIMITATIONS  ON  LIABILITY.     THE CONSULTANT MAKES NO
            ---------------------------------------
WARRANTY,  REPRESENTATION, OR PROMISE NOT EXPRESSLY SET FORTH IN THIS AGREEMENT.
EXCEPT  AS  OTHERWISE  EXPRESSLY  SET FORTH HEREIN THE SERVICES ARE PROVIDED "AS
IS."  THE  CONSULTANT  DISCLAIMS  AND EXCLUDES ANY AND ALL IMPLIED WARRANTIES OF
MERCHANTABILITY, TITLE AND FITNESS OF THE SERVICES FOR A PARTICULAR PURPOSE. THE
CONSULTANT  DOES NOT WARRANT THAT THE SERVICES OR RELATED MATERIALS WILL SATISFY
CUSTOMER'S  REQUIREMENTS  OR  THAT  THE  SERVICES  AND  RELATED SERVICES WILL BE
WITHOUT  DEFECT  OR  ERROR.

     8.     ENTIRE AGREEMENT.  This Agreement supersedes all previous agreements
            -----------------
between  the parties, contains the entire understanding between the parties, and
may  not  be  changed,  except in writing, duly executed by each of the parties.

     9.     INDEPENDENT CONTRACTOR.  The Consultant is an independent contractor
            -----------------------
relative  to the Customer and nothing contained herein shall be deemed to create
a  partnership  or  agency  relationship.

     10.     ASSIGNMENT.  This agreement may not be assigned without the express
             -----------
written  consent  of  the  non-assigning  party.

     11.     NOTICES.  All  notices  required  by  this  Agreement  shall  be in
             -------
writing  and  sent by Facsimile, Electronic Mail, Federal Express, or U.S. Mail,
Return Receipt Requested as provided below.  Such notice shall be sufficient for
the  purposes  of  this  Agreement  only  if  sent  to  the party's "Address for
Service"as  listed  below.  Such Address for Service may be changed by any party
by  serving  notice  (in  compliance with the paragraph) on the other party.  No
notice sent by facsimile shall be sufficient without a confirmation receipt.  No
notice  sent  by  electronic  mail shall be sufficient unless sent to an address
included  in  the  recipient's  Address  for  Service  and  acknowledged  by  a
human-generated  response.

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Consultant's  Address  for  Service:

     Address:   9500  East  Artesia  Blvd
                Suite  203
                Bellflower,  CA  90706
     Fax:       (562)  867  -  0933
     E-mail:    saquib@esstec.com

Customer's  Address  for  Service:

     Address:   2500  Ball  Road,  Suite  200
                Anaheim,  CA  92806
     Fax:       (714)  254  -  1078
     E-mail:    sanaUkhan@aol.com

     12.     DISPUTE RESOLUTION.  If a dispute or claim shall arise with respect
             -------------------
to  any  of the terms or provisions of this Agreement, then either party may, by
notice  as  herein  provided,  require  that  the dispute be submitted under the
Commercial  Arbitration  Rules  of  the  American  Arbitration Association to an
arbitrator  in  good  standing  with the American Arbitration Association within
fifteen  (15)  days after such notice is given.  Any such arbitrator so selected
is  to  be  mutually  acceptable to both parties.  If both parties are unable to
agree upon a single arbitrator, each party shall appoint one (1) arbitrator.  If
either party does not appoint an arbitrator within five (5) days after the other
party  has  given  notice  of  the name of its arbitrator, the single arbitrator
appointed  by  the  party  giving  notice  shall be the sole arbitrator and such
arbitrator's  decision  shall  be  binding  upon  both  parties.  If  two  (2)
arbitrators  are  appointed,  these  two  (2)  arbitrators shall appoint a third
arbitrator  who  shall proceed to resolve the question.  The written decision of
the  single  arbitrator  ultimately  appointed  by  or for both parties shall be
binding  and conclusive on the parties.  Judgment may be entered on such written
decision  by  the  single  arbitrator  in  any court having jurisdiction and the
parties  consent  to  the  jurisdiction  of  Orange  County, California for this
purpose.  Any arbitration undertaken pursuant to the terms of this section shall
occur  in  Orange  County,  California.

     13.     ATTORNEYS'  FEES.  In  the  event  of  any  legal,  equitable  or
             ----------------
administrative  action  or proceeding brought by any party against another party
under  this  Agreement,  the  prevailing  party shall be entitled to recover the
reasonable  fees  of  its  attorneys  and  any  costs incurred in such action or
proceeding  including  costs of appeal, if any, in such amount that the court or
administrative  body  having  jurisdiction  over  such  action  may  award.

     14.     GOVERNING  LAW.  This  Agreement  will be construed and enforced in
             --------------
accordance  with,  and  governed  by, the laws of the State of California in the
United  States  of  America  without  giving  effect  to  any  conflict  of laws
principles.  The  parties  hereby  consent  to  the personal jurisdiction of the
courts  of  the  County  of  Orange,  California, and waive any rights to change
venue.

     15.     CURRENCY  DENOMINATIONS.  All  currency denominations are in United
             ------------------------
States  dollars.

                             SIGNATURE PAGE FOLLOWS

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     IN  WITNESS  WHEREOF,  the  parties hereto have caused this Agreement to be
duly  executed  and  delivered  as  of  the  date  first  written  above.

The  Consultant

/s/  Abdul  Saquib
----------------------

By:  Abdul  L  Saquib
Its:  VP  Operations

The  Customer

/s/  Sana  Khan
---------------------

By:  Dr.  Sana  Khan
Its:  President

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