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                                                               EXHIBIT 10(m)(2)

                                  AMENDMENT TO
                        ADMINISTRATIVE SERVICES AGREEMENT

The Administrative Services Agreement ("Agreement") as entered into on May 29,
1998 between Transamerica Life Insurance and Annuity Company, ("Transamerica"),
a North Carolina corporation, and Legacy Marketing Group, ("LMG"), a California
corporation, is hereby amended, effective May 29, 1998, as follows:

ADD TO 3. HOLD HARMLESS AND INDEMNIFICATION:

        3.1

                (f)     In addition to the foregoing, LMG shall indemnify and
                        hold harmless Transamerica from and against any tax,
                        interest or penalties imposed by the IRS or any state or
                        local taxing authority on Transamerica, as well as any
                        liability Transamerica may incur to Policyholders caused
                        by or relating to LMG's failure to properly apply the
                        rules under IRC Section 72, or its failure to: (i)
                        deposit the correct amount of income tax withholding on
                        time; (ii) issue timely information returns; (iii)
                        correctly process tax related transactions related to
                        non-resident aliens; and (iv) correctly process tax
                        related transactions related to death claims.

ADD TO 7. GENERAL PROVISIONS:

        7.17    Section 9.2 shall also be deemed to survive the termination of
                this Agreement.

The parties agree as above.

LEGACY MARKETING GROUP

By /s/ R. PRESTON PITTS
  ------------------------------------

Title President
     ---------------------------------

Date  6/9/98
    ----------------------------------

TRANSAMERICA LIFE INSURANCE AND ANNUITY COMPANY

By /s/ WILLIAM N. SCOTT
  ------------------------------------

Title Vice President
     ---------------------------------

Date  June 3, 1998
    ----------------------------------<PAGE>   1

                                                                EXHIBIT 10(m)(3)

                                 AMENDMENT 2 TO
                        ADMINISTRATIVE SERVICES AGREEMENT

THIS SECOND AMENDMENT TO THE ADMINISTRATIVE SERVICES AGREEMENT is effective as
of the 18th day of October, 1999, by and between TRANSAMERICA LIFE INSURANCE AND
ANNUITY COMPANY, hereinafter referred to as "Transamerica," a North Carolina
corporation, and LEGACY MARKETING GROUP, hereinafter referred to as "LMG," a
California corporation.

WHEREAS, Transamerica and LMG entered into an Administrative Services Agreement,
dated May 29, 1998, as amended, hereinafter referred to as the "Agreement,"
wherein LMG agreed to provide certain Transamerica accounting and service
functions in consideration of the fees as set forth in APPENDIX B of the
Agreement.

NOW, THEREFORE, in consideration of the foregoing recitals and mutual promises
hereinafter contained and other good and valuable consideration, the parties
hereto do agree as follows:

        1.      Add to APPENDIX A, Policy Forms, as follows:
                "Group Master Policy#   T-GMY0799-7-100
                                        T-GMY0799-7-75/25
                                        T-GMY0799-7-50/50
                                        T-GBR-0799 (Beneficiary Rider)
                Policy #                T-PMY0799-7-100
                                        T-PMY0799-7-75/25
                                        T-PMY0799-7-50/50
                                        T-PBR-0799 (Beneficiary Rider)"

        2.      Add to APPENDIX B, as follows:

                "1.1 Beneficiary Rider

                        a. MAINTENANCE: $.25 per month per inforce Rider
                                        T-CBR-0799 or T-PBR-0799."

        3.      APPENDIX C, Section 1, Services: Appointment, sub-section 3, is
                hereby amended to read as follows:

                "If a Wholesaler/Producer meets LMG/Transamerica's contracting
                criteria, LMG will complete and mail all state required
                appointment forms or electronic transmission of appointment data
                to state.

                                  Page 1 of 2

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        4.      APPENDIX D, Schedule of Authorized Personnel, is hereby amended
                to read as follows:

                "REPRESENTING TRANSAMERICA

                Authorized to modify this Agreement:

                Ken Kilbane, Vice President
                Ron Wagley, Sr. Vice President"

                Authorized to provide day to day direction of LMG employees for
                policies and procedures not specifically covered in this
                Agreement:

                Ken Kilbane, Vice President
                Nancy DeWitt
                Kristina Barker"

        5.      All other provisions in the Agreement not specifically amended
                above remain in effect and unchanged.

IN WITNESS HEREOF, the parties have hereto executed this Agreement.

LEGACY MARKETING GROUP

By /s/ DAVID A. SKUP
  ------------------------------------

Title CFO + TREASURER
     ---------------------------------

Date  2/18/00
    ----------------------------------

Witness /s/ STEPHANIE MOLTENI
       -------------------------------

TRANSAMERICA LIFE INSURANCE AND ANNUITY COMPANY

By /s/ WILLIAM N. SCOTT
  ------------------------------------

Title VICE PRESIDENT
     ---------------------------------

Date  FEB 11, 2000
    ----------------------------------

Witness [SIG]
       -------------------------------

                                  Page 2 of 2<PAGE>   1
                                                                   EXHIBIT 10.23

                           ORBCOMM SYSTEM CONSTRUCTION
                                       AND
                              OPERATIONS AGREEMENT

        This ORBCOMM System Construction and Operations Agreement ("Agreement")
is made and entered into as of the 26th day of January 2000, by and between
ORBITAL COMMUNICATIONS Corporation, a Delaware corporation ("OCC"), and ORBCOMM
GLOBAL, L.P., a Delaware limited partnership ("ORBCOMM"), and amends and
restates the Restated ORBCOMM System Construction Agreement, dated as of
September 12, 1995, as amended by that certain Amendment No. 1 to Restated
ORBCOMM System Construction Agreement, dated as of July 1, 1996, in each case,
by and between OCC and ORBCOMM (as amended, the "System Construction
Agreement").

                               W I T N E S S E T H

        WHEREAS, Orbital Sciences Corporation, a Delaware corporation
("Orbital"), OCC, Teleglobe Inc., a Canadian corporation ("Teleglobe"), and
Teleglobe Mobile Partners, a Delaware general partnership ("Teleglobe Mobile"),
have entered into agreements for the development, construction, operation and
marketing of a low-Earth orbit satellite communications system that provides
two-way data and message communications services (the "ORBCOMM System") and
related activities in connection therewith;

        WHEREAS, on October 20, 1994, May 17, 1995, June 12, 1995 and March 31,
1998, OCC received from the FCC (as such term is hereinafter defined) licenses
authorizing OCC to construct, launch and operate 48 low-Earth orbit satellites
and to operate the associated ground infrastructure and subscriber units in the
United States (as modified, the "FCC Licenses"), for the purpose of providing
two-way data message communications services in the United States;

        WHEREAS, OCC and ORBCOMM are parties to the System Construction
Agreement, pursuant to which ORBCOMM agreed to develop, construct and launch
satellites and develop and construct certain other assets comprising the ORBCOMM
System in exchange for certain consideration, including the right to market,
sell, lease and franchise ORBCOMM System output capacity in certain locations;
and

        WHEREAS, OCC and ORBCOMM desire to amend and restate the System
Construction Agreement;

        NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein and other valuable consideration, the receipt and sufficiency
of which is hereby acknowledged, the parties hereto agree as follows:

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ARTICLE 1 - DEFINITIONS

        Except as otherwise specifically defined herein, capitalized terms shall
have the meanings ascribed to such terms in Appendix C attached to the Restated
Master Agreement dated as of September 12, 1995 among Orbital, OCC, Teleglobe
and Teleglobe Mobile, as amended by that certain Amendment No. 1 to Restated
Master Agreement dated as of February 5, 1997 (as it may be further amended or
restated from time to time, the "Master Agreement"), which Appendix is
incorporated herein by reference.

ARTICLE 2 - TERM

        The term of this Agreement shall commence on the date hereof and shall
continue until such time as OCC and ORBCOMM shall mutually agree to terminate
this Agreement; provided however, that in the event the FCC Licenses are
transferred by OCC to ORBCOMM, this Agreement shall automatically terminate on
such transfer.

ARTICLE 3 - USE OF SYSTEM CAPACITY AND OPERATION OF SYSTEM ASSETS

        SECTION 3.1.  USE OF SYSTEM CAPACITY.

        (a)     Subject to the terms and conditions of this Agreement, OCC
hereby grants to ORBCOMM, which shall in turn be authorized to grant to third
parties, including its resellers, licensees and subscribers: (i) the right to
market, sell, lease and franchise all ORBCOMM System output capacity worldwide
and to use the System Assets located in the United States; and (ii) a
non-exclusive license, to use all logos, service marks, trademarks and trade
names of OCC relating to the ORBCOMM System (the "Marks"), in the course of
ORBCOMM's (or any of such third party's) business, for advertising, promotional
or sales literature, or any other form of publicity for the duration of this
Agreement. ORBCOMM agrees (and shall use all commercially reasonable efforts to
require such third parties to agree) that its use of such Marks conforms (A)
with respect to ORBCOMM's use, to OCC's written requirements, if any, for
display of such Marks, including registry and trademark symbols, and (B) with
respect to such third parties' use, to ORBCOMM's written requirements for
display of such Marks, including registry and trademark symbols.

        (b)     ORBCOMM is hereby granted the right to manage and operate the
ORBCOMM System on behalf of OCC, and ORBCOMM shall provide OCC management and
operational services, including the performance of tracking, telemetry and
control functions, with respect to the ORBCOMM System, all subject to the
oversight, supervision and control of OCC. Notwithstanding any provision of this
Agreement to the contrary, each of OCC and ORBCOMM acknowledges and agrees that:
(i) OCC is in sole control of the FCC Licenses and the ORBCOMM System; and (ii)
OCC is required by FCC regulations to be in sole control of the FCC Licenses so
long as it is the licensee under the FCC Licenses and accordingly, that it has
the right, among other things, to order the discontinuance of operations to
avoid any violations of FCC rules and regulations and the right to unfettered
access to all facilities, sites and equipment used in the operation of the
ORBCOMM System. ORBCOMM further acknowledges and agrees

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that OCC has ultimate control over all decisions affecting the ORBCOMM System
including, but not limited to, the employment, supervision and dismissal of
personnel, notwithstanding any other provision of any of the Definitive
Agreements. ORBCOMM shall assist OCC in complying with all Federal, state and
local rules and regulations regarding operation of the ORBCOMM System, including
all FCC requirements set forth in any of the FCC Licenses.

        SECTION 3.2. CONSIDERATION FOR USE OF SYSTEM CAPACITY. In consideration
of the grant to ORBCOMM of the right to market, sell, lease and franchise
ORBCOMM System output capacity worldwide and to use the System Assets located in
the United States, ORBCOMM hereby agrees as follows:

        (a)     ORBCOMM shall (i) develop, construct, launch and operate the
Satellites comprising the ORBCOMM System and (ii) develop, construct and operate
the other assets comprising the ORBCOMM System located in the United States; and

        (b)     ORBCOMM shall pay the following cash consideration to OCC: (i)
for the period commencing on the date hereof and ending on December 31, 2000,
ORBCOMM shall pay OCC the sum of $100,000; $50,000 of which shall be payable on
June 30, 2000 and $50,000 of which shall be payable on December 31, 2000, and
(ii) for the periods following December 31, 2000, ORBCOMM shall pay OCC such fee
as is mutually agreeable to OCC and ORBCOMM, as determined by negotiation in
good faith by each of OCC and ORBCOMM.

        SECTION 3.3 INSURANCE ON SYSTEM ASSETS. Insurance on the ORBCOMM System
and the System Assets shall be procured by ORBCOMM in such amounts, at such
times and to cover such risks as ORBCOMM shall determine in its sole discretion.

        SECTION 3.4 TRANSFER OF ORBCOMM TRADEMARK AND SERVICE MARK. OCC agrees
to transfer and assign to ORBCOMM, at ORBCOMM's expense, the applications for or
the registered trademark and service mark "ORBCOMM", which transfer and
assignment shall occur upon terms and conditions to be mutually agreed, but in
any event at such time as such registered trademark or service mark comes up for
renewal in the country or territory where it is registered.

        SECTION 3.5 PATENT INDEMNIFICATION. ORBCOMM shall defend, indemnify and
hold harmless OCC and its respective successors and assigns from and against any
claim with respect to an infringement or other violation of any copyright,
trademark or patent or other validly registered enforceable intellectual
property right of any third party for any items ORBCOMM has constructed for OCC
pursuant to the authority granted in Section 3.2 hereof, but only to the same
extent as the indemnification received by ORBCOMM from Orbital, if any, under
the ORBCOMM System Procurement Agreement dated as of September 12, 1995, as
amended from time to time, between Orbital and ORBCOMM and the ORBCOMM
Procurement Agreement dated as of February 1, 1999, as amended from time to time
between Orbital and ORBCOMM.

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<PAGE>   4

ARTICLE 4 - MISCELLANEOUS

        SECTION 4.1 GOVERNING LAW. This Agreement shall be construed in
accordance with and governed by the laws of the State of New York, USA, without
giving effect to the provisions, policies or principles thereof relating to
choice or conflict of laws.

        SECTION 4.2 DISPUTE RESOLUTION. Any controversy or claim that may arise
under, out of, in connection with or relating to this Agreement shall be
resolved in accordance with Section 13.4 of the Master Agreement.

        SECTION 4.3 ENTIRE AGREEMENT. This Agreement constitutes the entire
agreement among the parties with respect to the subject matter hereof and
supersedes any prior writing, agreement or understanding among the parties with
respect to the subject matter hereof.

        SECTION 4.4 AMENDMENT; WAIVER. Except as provided otherwise herein, this
Agreement may not be amended nor may any rights hereunder be waived except by an
instrument in writing signed by the parties hereto.

        SECTION 4.5 BINDING EFFECT; ASSIGNMENT. This Agreement shall be binding
on and shall inure to the benefit of the parties and their respective successors
and permitted assigns. Neither this Agreement nor any interests or obligations
hereunder shall be assigned or transferred (by operation of law or otherwise) to
any Person without the prior written consent of the other party.

        SECTION 4.6 COUNTERPARTS. This Agreement may be executed in any number
of counterparts of the signature pages, each of which shall be considered an
original, but all of which together shall constitute one and the same
instrument.

        SECTION 4.7 HEADINGS. The section and other headings contained in this
Agreement are for reference purposes only and shall not affect the meaning or
interpretation of this Agreement.

        SECTION 4.8 NOTICES. Except as otherwise specified herein, all notices,
requests and other communications required to be delivered to any party
hereunder shall be in writing (including any facsimile transmission or similar
writing), and shall be sent by facsimile or delivered in person addressed as
follows:

        (a)     If to OCC:

                21700 Atlantic Boulevard
                Dulles, Virginia  20166
                Attention: Vice President and Chief Financial Officer
                Facsimile: (703) 406-3502

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<PAGE>   5

        (b)     If to ORBCOMM:

                2455 Horse Pen Road, Suite 100
                Herndon, Virginia  20171
                Attention: Senior Vice President, General Counsel and Secretary
                Facsimile: (703) 406-5933

                with a copy to:

                Teleglobe Inc.
                1000 rue de la Gauchetiere ouest
                Montreal, Quebec
                Canada H3B 4X5
                Attention: Vice President, Legal Affairs and Corporate Secretary
                Facsimile: (514) 868-7438

or to such other persons or addresses as any party may designate by written
notice to the others. Each such notice, request or other communication shall be
effective (i) if given by facsimile, when such facsimile is transmitted and the
appropriate answerback is received, (ii) if given by reputable overnight
courier, one business day after being delivered to such courier, or (iii) if
given by any other means, when received at the address specified in this Section
4.8.

        IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed as of the day and year first above written.

ORBITAL COMMUNICATIONS CORPORATION        ORBCOMM GLOBAL, L.P.

By: /S/ Jeffrey V. Pirone                 By: /s/ Scott L. Webster
    --------------------------                --------------------------
    Name:   Jeffrey V. Pirone                 Name: Scott L. Webster
    Title:  Vice President and                Title:  President and
              Chief Financial Officer                   Chief Executive Officer

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