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                                                                  EXHIBIT 10.51
April 17, 2000

Mr. Casey L. Gunnell
2240 NW 23rd Way                                                        REVISED
Boca Raton, FL  33431

Dear Casey:

         It is with great pleasure that I offer you the position of Chief
Financial Officer of PNV, Inc. The primary responsibility of this position is
to lead and direct the Company's financial efforts, particularly with the
investment community, driving the Company to realize its vision. This is an
officer position reporting directly to me.

         The annual base salary is $225,000.00 per year based on 52 weeks
service. In addition you will be eligible for an annual management incentive
program with a target earnings opportunity of 50% of base salary. This bonus
opportunity is subject to the achievement of specific individual objectives to
be defined within the first few weeks of your employment. The first year's
bonus will be prorated. If full time employment commences by May 15, 2000 you
will be eligible for one-month bonus. For FY 2001 your minimum bonus payment
will be 25% of your targeted bonus amount.

         This offer includes a stock option grant of 130.000 shares. This grant
will vest pro rata on the last day of each calendar month during the first 48
months of your employment, subject to customary terms contained in the
Incentive Stock Options agreement issued by the Company under the plan. The
exercise price for the options will equal the fair market value of the stock on
the date you accept this offer.

         For FY 2001 (commencing July 1, 2000) you will be also eligible for
additional options resulting from a NEW option plan being adopted and approved
for senior management by the Board of Directors. The number of granted options
would be on par with the number granted to other members of executive
management.

         As an employee of PNV, Inc. you will be entitled to benefits in
accordance with the Company's standard benefit program and the executive health
plan currently in place. In addition, subject to your meeting the evidence of
insurance requirements, you will be provided with a company-paid Supplementary
Disability policy. You will be eligible for 4 weeks of paid vacation per year,
including your first year of employment.

         In the event your employment is terminated for any reason other than
for cause during your first 24 months with PNV, you will receive severance pay
in the amount of 12 months' salary and bonus, and benefit continuation for 12
months.

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Mr. Casey L. Gunnell
April 17, 2000
Page 2

         In the event of change in control of PNV, all Incentive and
Non-Qualified Stock Options will immediately become vested. In addition, if you
are terminated within 12 months of the change in control you will receive 12
months' salary and bonus, and benefit continuation for 12 months. You will also
receive these benefits if, within 12 months following a change in control, you
are constructively discharged. Constructive discharge is defined as a material
change in responsibilities, a change in work location to a new location more
than 50 miles from Coral Springs, Florida, or a reduction in compensation
unless all officers of the company are similarly affected.

         Your position will require a "full time" commitment. It is understood
that you have outside interests to which you are currently obligated.
Specifically, FAU and your interest in an automotive transport company in
Dallas, Texas. Your interest in these may continue as long as they do not
detract from your PNV duties and responsibilities. Any future outside interest
will require specific approval.

         It is specifically understood and agreed that the organization you are
joining needs personnel. You will have maximum latitude in hiring the personnel
necessary to accomplish our mission. It is also understood that you have family
obligations from approximately June 30th through the first week of July and
will not be available for work during this period.

         PNV is a Drug Free Workplace, and this offer is contingent upon your
passing a drug screening test. Upon hire, you will be required to sign a
confidentiality and on-compete agreement, which will extend 12 months beyond
any termination date of your employment by PNV.

         A job description summarizing our discussions regarding the duties and
responsibilities of your position is enclosed.

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Mr. Casey L. Gunnell
April 17, 2000
Page 3

         Casey, I sincerely believe that PNV, Inc. has an exciting future,
filled with substantial opportunity for business growth and personal success. I
also feel that you are a very talented professional with significant potential
to help us grow and succeed. We are excited about the prospect of your joining
the PNV team.

         Please sign this offer letter and return to me as soon as possible. I
have enclosed an additional copy for your records.

                                           Sincerely,

                                           /s/ Robert P. May
                                           Robert P. May
                                           Chief Executive Officer

Accepted:

/s/ Casey L. Gunnell
Casey L. Gunnell

Enclosure<PAGE>   1
                                                                  EXHIBIT 10.52

August 1, 2000

Mr. Jeffrey T. Hendrickson
1982 Merwins Lane
Fairfield, CT 06430

Dear Jeff,

It is with great pleasure that I offer you the position of Executive Vice
President/Chief Operating Officer of PNV Inc. The primary responsibility of
this position is to lead and direct the Company's operations and sales efforts,
driving the Company to realize its vision. This is an officer position
reporting directly to me, as does the Chief Financial Officer, which has been
discussed. I recognize your interest in growing your responsibilities within
the organization and will keep an open dialogue on those aspirations. The
following employment agreement will outline the terms of the offer.

The annual base salary is $250,000 per year (based on 52 weeks service). Within
two weeks of reporting to work, you will receive a sign-on bonus of $60,000. In
addition you will be eligible for an annual management incentive program with a
target earnings opportunity of 50% of base salary (in effect at that time) and
a scale for achievement beyond target. This bonus opportunity is subject to the
achievement of specific individual objectives to be defined by you and me
within the first few weeks of your employment. For FY2001 your minimum bonus
payment will be 25% of your base salary in effect at that time.

This offer includes a stock option grant of 150,000 shares. Of this grant,
120,000 shares will vest pro-rata on the last day of each calendar month during
the first 48 months of your employment, subject to customary terms contained in
the Nonqualified Stock Option Plan agreement issued by the Company under the
plan. The exercise price for the options will equal the fair market value of
the stock on the date you accept this offer. Further, within twenty days of
accepting this offer, we will immediately grant the remaining 30,000 options of
the 150,000. These 30,000 shares will vest in two tranches of 15,000 shares
each, upon reaching milestones to be mutually agreed upon.

Subject to Board and Shareholder approval, the Company will implement a new
stock option plan for FY 2002. Subject to Board approval, the Company will
grant you an additional option to purchase at least 150,000 shares of common
stock, under the new stock option plan, at an exercise price equal to the fair
market value on the date of grant.

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August 1, 2000
Mr. Jeffrey T. Hendrickson
Page 2

As an employee of PNV, Inc. you will be entitled to benefits in accordance with
the Company's standard benefit program and the executive health plan currently
in place. In addition, subject to your meeting the evidence of insurance
requirements, you will be provided with a company-paid Supplementary Disability
policy. You will also be eligible for FLEXI-Days, our policy combining vacation
and other paid time off, accrued at the rate of 29 days per year including your
first year of employment.

In the event your employment is terminated for any reason other than for cause
during your first 24 months with PNV, you will receive any accrued but unpaid
bonus, severance pay in the amount of 12 months' salary and bonus (in the
amount of the highest annual bonus previously paid to you), benefit
continuation for 12 months and reimbursement for Outplacement Services of your
choice subject to a $25,000 cap. This severance policy will remain in effect
after the 24-month period unless it is superseded by a new severance policy
applicable to all members of executive management. As a condition to payment of
such severance benefits, you will be required to execute a Confidential
Settlement Agreement and General Release in the form of Exhibit A attached
hereto. For these purposes, cause shall mean your (a) conviction of a felony or
of a misdemeanor involving moral turpitude, or (b) gross insubordination,
knowing and material violation of any published company policy, or persistent,
willful failure to perform the material duties of your job. With respect to the
conduct described in subparagraph (b), cause shall not exist unless and until
the company has provided you written notice specifying the conduct constituting
cause and you have had at least 30 days to cure such alleged cause, unless the
cause cannot be cured.

In the event of change in control of PNV, all Incentive and Non-Qualified Stock
Options will immediately become vested. In addition, if you are terminated
within 12 months of the change in control you will receive any accrued but
unpaid bonus, a pro-rata bonus for the year of termination (based upon the
prior years bonus) severance pay in the amount of 24 months' salary and bonus
(the bonus being 2 times the amount of the highest annual bonus paid you during
the previous 2 years), benefit continuation for 12 months and reimbursement for
Outplacement Services of your choice subject to a $25,000 cap. You will also
receive these benefits if, within 12 months following a change in control, you
are constructively discharged. Constructive discharge is defined as a material
change in responsibilities, a change in work location to a new location more
than 50 miles from Coral Springs, Florida, or a reduction in compensation
unless all officers of the company are similarly affected, or you are no longer
reporting directly to me personally.

Your position will require a "full time" commitment. It is understood that you
have outside interests to which you are currently obligated, specifically board
positions at Bernard C. Harris Publishing Co. and USA-to-Z.com. Your interest
in these may continue as long as they do not detract materially from your PNV
duties and responsibilities. Any future outside interest, including board
positions, will require specific approval.

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August 1, 2000
Mr. Jeffrey T. Hendrickson
Page 3

You will be eligible for the company's relocation benefits for up to 12 months.
This will include appropriate temporary living expenses up to $3,500 per month
(excluding travel expenses to and from your residence in Connecticut), until
such time as you change your domicile to the environs of Coral Springs, FL but
in no event for more than 12 months. Other relocation expenses will be
reimbursed according to company policy consistent with your executive position.

PNV is a Drug Free Workplace, and this offer is contingent upon your passing a
drug screening test. Upon hire, you will be required to sign a confidentiality
and non-solicitation agreement which will extend 12 months beyond any
termination date of your employment by PNV.

Jeff, I sincerely believe that PNV Inc. has an exciting future, filled with
substantial opportunity for business growth and personal success. I also feel
that you are a very talented professional with significant potential to help us
grow and succeed. We are excited about the prospect of your joining the PNV
team.

Please sign this offer letter and return to me as soon as possible. I have
enclosed an additional copy for your records.

Sincerely,

/s/ Robert P. May
Robert P. May
Chief Executive Officer

Accepted:

/s/ Jeffrey T. Hendrickson
Jeffrey T. Hendrickson

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