Document:

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                                                                   Exhibit 10.43

                           POLAR MOLECULAR CORPORATION

                              CONSULTING AGREEMENT

AGREEMENT, made as of the 1st of July, 2002, by and between POLAR MOLECULAR
CORPORATION (PMC) a Delaware corporation, with offices at 4600 South Ulster
Street, Suite 940, Denver, Colorado 80237, and Gilbert Chapelet, at 4875 DTC
Boulevard, Bldg. 2-103, Denver, Colorado 80237.

Position:

Gilbert Chapelet will work as a consultant, reporting directly to Mark L.
Nelson, Chairman, President and CEO of PMC.

Responsibilities:

Gilbert Chapelet has had experience in business and research management on
petroleum products. PMC desires to retain his services as strategy, business and
research consultant to and for PMC without any limitation of territory. Specific
responsibilities will be to develop the relationship with TFE company based in
France.

Work Location

The primary work location will be at his home.

Compensation:

PMC will provide the consultant a monthly compensation based on a daily fee of
U.S. $1,000 and not less than U.S. $2,000 per month, payable the last business
day of each calendar month. The consultant will also qualify for any stock
option plan for officers, directors, and employees. Said stock options will be
made available upon the recommendation of the President and approved by the
Compensation Committee of the Board of Directors. The consultant will also
qualify for cash bonuses at the recommendation of the President, approved by the
Compensation Committee of the Board of Directors.

Stock Subscription:

Gilbert Chapelet will be allowed to subscribe, upon execution of this contract
to 111,112 shares of PMC Delaware common stock valued at $.0001 per share (fair
market value). The shares will vest on a quarterly basis over the two year
contract term.

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Duration:

The duration of this contract will be for two years, beginning on or about July
1, 2002, and ending on or about June 30, 2004, renewable for successive one year
periods by the mutual consent of the parties.

Work Schedule:

The work schedule is expected to be flexible and involve a maximum of 60 days
per year. Travel time will be charged to PMC.

Office Equipment:

If necessary for the home office, PMC will provide necessary funds for
establishing an office, including telephone and fax costs, secretarial services
if needed, a state of the art computer, printer, and necessary software.

Where appropriate, all regular recurring monthly costs incurred will be billed
directly to PMC for payment. In addition Gilbert Chapelet will bill PMC monthly
for out of pocket expenses incurred, and PMC will reimburse Gilbert Chapelet
within not more than 30 days.

Travel Related Expenses:

Gilbert Chapelet will be provided with a Corporate American Express card and
will charge all expenses for travel, including air travel costs, lodging costs,
meals and taxi, etc. to this card for payment. Airline travel will typically be
coach fares, if coach travel is unavailable, then upgrade will be allowed. On
international flights, an upgrade business fare will be allowed.

Accepted and acknowledged as of the date first above written.

POLAR MOLECULAR CORPORATION

By: /s/ Mark L. Nelson                          /s/ Gilbert Chapelet
    ------------------------------              --------------------------------
        Mark L. Nelson                              Gilbert Chapelet
        Chairman, President & CEO<PAGE>

                                                                   Exhibit 10.44

                           POLAR MOLECULAR CORPORATON

                              CONSULTING AGREEMENT

AGREEMENT, made as of the 21st of June, 2002, by and between POLAR MOLECULAR
CORPORATION (PMC) a Delaware corporation, with offices at 4600 South Ulster
Street, Suite 940, Denver, Colorado 80237, and Jim Clarke at 18219 Arselot
Drive, Northville, Michigan 48167.

Position:

Jim Clarke will work as a consultant, reporting directly to Mark L. Nelson,
Chairman, President and CEO of PMC.

Responsibilities:

The consultant will assist the company in its relationship with the Ford Motor
company and other auto makers from time to time in order to secure auto maker
support for the Company's fuel additive technology. The consultant will also
assist the Company in marketing DurAlt FC to U.S. Oil companies.

Work Location:

The primary work location will be at his home.

Compensation:

PMC will provide the consultant a monthly compensation based on an hourly fee of
$250, payable the last business day of each calendar month. The number of
compensable hours will be capped at 10 per each day (24 hours) that Consultant
is requested to be away from his residence on Company's business.

Stock Subscription:

Consultant will be granted a two year option to purchase 100,000 shares of the
Company's Delaware common stock at a price of $.0001 per share (fair market
value), based on the accomplishment of the following objectives:

..    One third may be purchased following a meeting between consultant, members
     of Company management, members of Ford Motor company management, and a
     representative of TFE Additives.

..    One third may be purchased following a meeting between Consultant, members
     of Company management, members of Exxon/Mobil management, and a
     representative of Ford Motor Company. It is expected that this meeting will
     be arranged by a member of Ford Motor Company management at the requested
     of Consultant.

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..    One third may be purchased following accomplishment of any substantive
     market support by Ford Motor Company in furtherance of Company's objectives
     to sell DurAlt FC to major oil companies for distribution in the United
     States market or Western Europe.

Duration:

The duration of this contract will be for two years, beginning on or about June
21, 2002, and ending on or about June 20, 2004, renewable for successive one
year periods by the mutual consent of the parties.

Work Schedule:

The work schedule is expected to be flexible and involve a maximum of 60 days
per year. Travel time will be charged to PMC.

Office Equipment:

If necessary for the home office, PMC will provide necessary funds for
establishing an office, including telephone and fax costs, secretarial services
if needed, a state of the art computer, printer, and necessary software.

Where appropriate, all regular recurring monthly costs incurred will be billed
directly to PMC for payment. In addition Consultant will bill PMC monthly for
out of pocket expenses incurred, and PMC will reimburse Consultant within not
more than 30 days.

Travel Related Expenses:

Consultant will be provided with a corporate credit card and will charge all
expenses for travel, including air travel costs, lodging costs, meals and taxi,
etc. to this card for payment. Airline travel will typically be coach fares, if
coach travel is unavailable, then upgrade will be allowed. On international
flights, an upgrade business fare will be allowed.

Accepted and acknowledged as of the date first above written.

POLAR MOLECULAR CORPORATION

By: /s/ Mark L. Nelson                             /s/ Jim Clarke
   -----------------------------------------       -----------------------------
        Mark L. Nelson                                 Jim Clarke
        Chairman, President & CEO

                                       2<PAGE>

                                                                   Exhibit 10.45

September 24, 2001

Mr. Mark L. Nelson, President
Polar Molecular Corporation
4600 S. Ulster Street, Suite 700
Denver, CO  80237

          RE:  Due Diligence Report - Update October 2001

Dear Mr. Nelson:

It is a pleasure to present this engagement letter with respect to our
involvement in updating the independent due diligence and financial analysis of
Polar Molecular Corporation ("Polar" or "the Company") that our firm originally
presented in a report dated September 23, 1999 and then updated in a report
dated September 2000. The purpose of the Houlihan Smith & Company, Inc.
("Houlihan") engagement will be to update the previously completed due diligence
studies of Polar for significant business and financial developments.

Intended Use of Due Diligence Report - Update

We understand that our findings will be used by Polar, its officers and
directors, and selected broker-dealers, Houlihan included, in connection with
various market-making and securities offerings of debt and / or equity,
including private placements and public offerings (the "Offerings").

Scope of Investigation

Our analysis for this update report will include, but not be limited to the
following:

..    Review and background check of new Polar personnel;
..    Review of the Company's business strategy, contracts, pricing assumptions,
     market opportunities, competition, stage of development, etc.;
..    Review of the history of the Company;
..    Review of existing and proposed corporate structure of the Company;
..    Analysis of the industry in which the Company operates, overall growth
     potential, and an overview of the regulatory aspects of that industry;
..    Analysis of market prices and other relevant market data for any public
     companies engaged in similar businesses as the Company;
..    Detailed analysis of all significant business developments, including the
     execution of a Joint Marketing Agreement with TotalFinaElf;
..    Detailed analysis of financial projections;
..    Analysis of sales and marketing requirements of the Company;

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..    Summary of significant risk factors and business opportunities facing the
     Company;
..    Analysis of anticipated capital requirements;
..    Analysis of anticipated use of proceeds;
..    Analysis of current ownership;
..    Request for representation letters from Management;
..    Other such due diligence investigations deemed necessary in order to make
     reasonable attempts to verify the accuracy of disclosure concerning the
     Company securities in Offering memorandums;

The due diligence study and key findings ("Due Diligence Study Update October
2001" or "Update Report #2") will be documented in a report, with a file of due
diligence documentation maintained in our offices for use by Polar or
prospective broker-dealers, or investors. The purpose of the Update Report would
be to provide summary financial, operational, market pricing, and other
information to allow prospective investors to assess the investment opportunity
and make their own opinions regarding the reasonableness of pricing. The Update
Report, and any other documentation provided by Houlihan are intended solely for
informational purposes and are not to be construed by any party as investment
advice or an opinion as to the fairness of any proposed transaction.

The management of Polar will assist Houlihan by providing requested information
on a timely basis, as well as cooperating in all aspects of Houlihan's
background checks (by providing social security numbers and other requested
information).

Fees and Compensation

The professional fees payable to Houlihan for preparation and completion of the
Due Diligence Study Update September 2000 shall be a cash payment of $19,500
plus reimbursement of all out-of-pocket expenses. The professional fees shall be
payable upon the completion of a minimum sale of Polar securities, regardless of
type, of at least $2 million from the period beginning August 8, 2000.
Out-of-pocket expenses will include, but not be limited to, all reasonable
travel, telephone, background checks and verification, copying, printing, and
research expenses directly incurred in connection herewith.

In addition to the above cash fees, as additional compensation for its services
in preparing the Update Report, upon completion, Polar shall issue to Houlihan
250,000 warrants ("Warrants"). Such Warrants may be exercised by the holder five
years following issuance at an exercise price equal to Polar's most recent
financing. Warrants shall have piggyback registration rights and will be
adjusted for new stock issuance and / or splits.

Indemnification of Houlihan by Polar

If Houlihan or any person associated with Houlihan becomes involved in any way
in any legal or administrative proceeding related to the services performed
hereunder or the report, the Company will indemnify, defend and hold Houlihan
and any such person harmless from all damage and expenses (including reasonable
attorney's fees and expenses and court costs) incurred in connection therewith,
except to the extent that a court having jurisdiction shall have determined in a
final judgment that such loss, claim, damage or liability resulted primarily
from

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the gross negligence, bad faith, willful misfeasance, or reckless disregard of
the obligations or duties of Houlihan hereunder.

Please indicate your approval and agreement to the scope and terms of our
engagement by executing the enclosed copy of this letter and returning it to us
promptly.

                                            Sincerely,
                                            Houlihan Smith & Company, Inc.

                                            /s/ Andrew D. Smith
                                            ------------------------------------
                                                Andrew D. Smith
                                                President

AGREED AND ACCEPTED this 25th day of September 2001:

Polar Molecular Corporation

/s/ Mark L. Nelson
------------------------------------
    Mr. Mark L. Nelson
    President

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