Document:

<PAGE>

                                                                    EXHIBIT 10.6

                                   RETENTION
                                   AGREEMENT

This RETENTION AGREEMENT (the "Agreement") is made and entered into effective as
of the 30th day of September, 1999, by and among Woodcreek Bank, a Texas banking
association, Paradigm Bancorporation, Inc. a Texas corporation and a bank
holding company registered under the Bank Holding Company Act of 1956, as
amended, and Jay W. Porter, Jr., a resident of Texas (hereinafter the
"Executive").

WHEREAS the Executive is president and chief executive officer of Woodcreek Bank
(the "Bank"); and

WHEREAS the Executive is Chief Credit Officer of Paradigm Bancorporation, Inc.
(the "Company"); and

WHEREAS the Bank and the Company could suffer financial hardship if the
Executive were to leave the employment of either entity.

NOW, THEREFORE, in consideration of the mutual promises and covenants set forth
herein the Executive, the Bank, and the Company agree as follows:

1.  Term.  The term of this Agreement is for a period of twelve months and shall
automatically renew under the same terms and conditions subject to the right of
the Boards of the Bank and the Company to refuse renewal by giving the Executive
60 days notice prior to September 30, 2000 and the like date thereafter.  This
Agreement is subject to the termination provisions of Sections 4, 5 and 6.

2.  Change in Control.  If the Bank or the Company should sell or experience a
change in control, i.e. more than 34% of the stock be sold to an individual,
group or company not a shareholder as of September 1, 1999 ("Change in
Control"), the Executive shall at the option of the Bank and the Company (i) be
employed at the Bank and the Company in substantially equivalent positions with
substantially equivalent duties and responsibilities at his annual salary in
effect at the time of the Change in Control and with substantially similar
benefits for a period of twelve months following the Change in Control or (ii)
receive from the Bank and the Company the remainder of the Executive's
compensation for the twelve months from the date of the Change in Control based
upon his annual salary in effect at the time of the Change in Control. The
obligations of the Bank and Company are subject to the provisions of Sections 4,
5 and 6 below.  Should the Bank or the Company elect to terminate the
Executive's employment during the twelve month period following the Change in
Control other than as permitted in Sections 4 and 5, the Executive shall have
the option of receiving the remaining months of compensation either monthly or
in a lump sum, subject to withholding requirements.

3.  Additional Benefits.  In addition to the compensation in Section 2 above,
the Executive shall continue to receive insurance benefits for the twelve months
<PAGE>

following the Change in Control should the Bank or the Company terminate the
Executive within twelve months after the Change in Control.

4.  Termination for Cause. The Bank and the Company may terminate the employment
of the Executive for Cause (as defined below) and the obligations of the Bank
and the Company shall be limited to the unpaid portion of (i) the Executive's
salary through the date of termination and (ii) all other amounts or benefits
owing or accrued to, vested in, or earned by the Executive through the date of
termination under the then existing or applicable plans, programs, arrangements,
and policies of Bank and the Company (other than severance policies).  Such
payment will be made in cash in one lump sum within thirty (30) days after the
date of termination.

As used in this Agreement, the term "Cause" means (i) willful misconduct by the
Executive, (ii) the gross neglect by the Executive of his duties as an officer
of the Bank or the Company (iii) the commission by the Executive of an act,
other than an act taken in good faith within the course and scope of the
Executive's employment, which is directly detrimental to Bank or the Company and
which act exposes Bank or the Company to material liability, (iv) the Executive
having been indited for or convicted of any felony or other crime involving
moral turpitude, or (v) the current illegal use of narcotics, illegal drugs or
controlled substances by the Executive, or the current use of alcohol by the
Executive to an extent which materially impairs the performance of the
Executive's duties.

5.  Termination for Death or Disability.  The Executive's employment shall
terminate upon the death of the Executive and, at the option of the Bank and the
Company, will terminate upon the Executive's Disability (as defined below). If
the Executive's employment is terminated by reason of the Executive's death or
Disability, the Bank and the Company shall pay to the Executive's legal
representatives cash in one lump sum within thirty (30) days after the date of
Executive's death or Disability (i) the Executive's salary through the date of
the death or Disability and (ii) all other amounts or benefits owing or accrued
to, vested in, or earned by the Executive through the date of the death or
Disability under the then existing or applicable plans, programs, arrangements,
and policies of Bank and the Company (other than severance policies). Anything
in this Agreement to the contrary notwithstanding, the Executive's legal
representatives or beneficiaries shall be entitled to receive benefits provided
under the then existing or applicable plans, programs, or arrangements and
policies of Bank and the Company relating to death or disability.

As used herein, "Disabled" shall mean total disability as determined pursuant
to the Bank's long-term disability plan, or if no such plan shall be in
effect, by the Boards of Directors of Bank and the Company in accordance with
their reasonable business judgment and the normal personnel practices of the
Bank and the Company.

                                       2
<PAGE>

6.  Voluntary Termination.  If the Executive terminates his employment other
than due to a breach of this agreement by the Bank or the Company, the
obligations of the Bank and the Company, shall be limited to the unpaid portion
of (i) the Executive's salary through the date of termination and (ii) all other
amounts or benefits owing or accrued to, vested in, or earned by the Executive
through the date of termination under the then existing or applicable plans,
programs, arrangements, and policies of Bank and the Company (other than
severance policies).  Such payment will be made in cash in one lump sum within
thirty (30) days after the date of termination.

7.  Employment at Will.  The Executive acknowledges that this Agreement does not
alter the Executive's status as an employee at will.  Further, the Executive
acknowledges that this agreement is solely intended to provide protection in the
event of a Change in Control of the Bank or the Company.

8.  Consideration.  The Bank, the Company and the Executive agree that the
Executive's continued performance in his professional capacity shall be adequate
consideration for this Agreement.

9.  Notice.  Any notice under this Agreement must be in writing and may be given
by certified or registered mail, postage prepaid, addressed to the party or
parties to be notified with return receipt requested, or by delivering the
notice in person.  For purposes of notice, the address of Executive or any
administrator, executor or legal representative of Executive or his estate, as
the case may be, shall be the last address of the Executive on the records of
the Bank.  The address of the Bank and the Company shall be their principal
business address.

10.  Applicable Law.  This Agreement shall be governed by the laws of the State
of Texas.

11.  Amendment.  This Agreement contains the entire agreement of the parties and
may only be amended in writing signed by all parties; provided, that no
amendment to this Agreement shall be effective unless authorized by resolution
of the Board of Directors and signed on behalf of Bank and the Company by a duly
authorized officer of Bank and the Company other than Executive.

12.  Validity.  If any provision of this Agreement is declared by a court of
last resort to be invalid, the Bank, the Company and the Executive agree that
such declaration shall not affect the validity of the other provisions of this
Agreement.  If any provision of this Agreement were capable to two
constructions, one of which would render the provision void and the other of
which would render the provisions valid, then the provision shall have the
construction which renders it valid.

13.  Best Efforts.  The Executive shall use his best efforts to preserve the
business and organization of the Bank and the Company, to keep available to the
Bank and the Company the services of its present employees and to preserve the
business relations of the Bank and the Company with suppliers, distributors,
customers and others.  The

                                       3
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Executive shall not commit any act, which would injure the Bank or the Company.
The Executive shall observe and fulfill proper standards of fiduciary
responsibility attendant upon his offices.

14.  Assignability.  This Agreement is personal to the Executive and without the
prior written consent of the Bank and the Company shall not be assignable by the
Executive other than by will or the laws of descent and distribution.  This
Agreement shall inure to the benefit of and be enforceable by the Executive's
legal representatives and heirs.  This Agreement shall inure to the benefit of
and be binding upon Bank, the Company and their successors and assigns.  The
Bank and the Company shall require any corporation, entity, individual or other
person who is successor (whether direct or indirect, by purchase, merger,
consolidation, reorganization, or otherwise) to all or substantially all of the
business or assets of Bank and the Company to expressly assume and agree to
perform, by a written agreement in form and substance satisfactory to Executive,
all of the obligations of the Bank and the Company under this Agreement.  As
used in this Agreement, the term "Bank" and "Company" shall mean the Bank and
the Company as hereinbefore defined and any successor to their business and/or
assets as aforesaid which assumes and agrees to perform this Agreement by
operation of law, written agreement, or otherwise.

15.  Waiver.  The waiver by a party of a breach of any provision of this
Agreement by the other party shall not operate or be construed as a waiver by
the waiving party of any subsequent breach of the other party.

16.  Revocation of Prior Agreements.  Any and all previous employment agreements
existing between the Bank, the Company and the Executive are revoked and
canceled.

17.  Counterparts.  This Agreement may be executed in multiple counterparts,
each of which shall be deemed an original, and all of which shall constitute one
instrument.

  IN WITNESS WHEREOF, this Agreement is executed as of the 30th day of
September, 1999.

"EXECUTIVE"                   WOODCREEK BANK

                              By:
----------------------           --------------------------------
Jay W. Porter                 Name:
                                   ------------------------------
                              Title:
                                    -----------------------------

                              PARADIGM BANCORPORATION, INC.

                              By:
                                 --------------------------------
                              Name:
                                   ------------------------------
                              Title:
                                    -----------------------------

                                       4<PAGE>

                                                                   EXHIBIT 10.10

                TRUST PREFERRED SECURITIES GUARANTEE AGREEMENT

                                by and between

                         PARADIGM BANCORPORATION, INC.

                                      and

                FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION

                         Dated as of December 1, 1999
<PAGE>

                               TABLE OF CONTENTS

                                                          PAGE
                                                          ----

ARTICLE I

 DEFINITIONS AND INTERPRETATION.......................      1
 Section 1.1.     Definitions and Interpretation......      1

ARTICLE II

 TRUST INDENTURE ACT..................................      5
 Section 2.1.     Trust Indenture Act; Application....      5
 Section 2.2.     Lists of Holders of Securities            5
 Section 2.3.     Reports by the Trust Preferred
                   Guarantee Trustee..................      5
 Section 2.4.     Periodic Reports to Trust Preferred
                   Guarantee Trustee..................      6
 Section 2.5.     Evidence of Compliance with
                   Conditions Precedent...............      6
 Section 2.6.     Events of Default; Waiver...........      6
 Section 2.7.     Event of Default; Notice............      6
 Section 2.8.     Conflicting Interests...............      7

ARTICLE III

 POWERS, DUTIES AND RIGHTS OF TRUST PREFERRED
  GUARANTEE TRUSTEE...................................      7
 Section 3.1.     Powers and Duties of the Trust
                   Preferred Guarantee Trustee........      7
 Section 3.2.     Certain Rights of Trust Preferred
                   Guarantee Trustee..................      9
 Section 3.3.     Not Responsible for Recitals or
                   Issuance of Guarantee..............     10

ARTICLE IV

 TRUST PREFERRED GUARANTEE TRUSTEE....................     11
 Section 4.1.     Trust Preferred Guarantee Trustee;
                   Eligibility........................     11
 Section 4.2.     Appointment, Removal and Resignation
                   of Trust Preferred Guarantee
                   Trustees...........................     11

ARTICLE V

 GUARANTEE............................................     12
 Section 5.1.     Guarantee...........................     12
 Section 5.2.     Waiver of Notice and Demand.........     12
 Section 5.3.     Obligations not Affected............     13
 Section 5.4.     Rights of Holders...................     14
 Section 5.5.     Guarantee of Payment................     14

                                      -i-
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 Section 5.6.     Subrogation.........................     14
 Section 5.7.     Independent Obligations.............     14

ARTICLE VI

 LIMITATION OF TRANSACTIONS; SUBORDINATION............     15
 Section 6.1.     Limitation of Transactions..........     15
 Section 6.2.     Ranking.............................     15

ARTICLE VII

 TERMINATION..........................................     15
 Section 7.1.     Termination.........................     15

ARTICLE VIII

 INDEMNIFICATION......................................     16
 Section 8.1.     Exculpation.........................     16
 Section 8.2.     Indemnification.....................     16

ARTICLE IX

 MISCELLANEOUS........................................     17
 Section 9.1.     Successors and Assigns..............     17
 Section 9.2.     Amendments..........................     17
 Section 9.3.     Notices.............................     17
 Section 9.4.     Benefit.............................     18
 Section 9.5.     Governing Law.......................     18

                                      -ii-
<PAGE>

                                 CROSS REFERENCE TABLE

Section of Trust                                        Section of
Indenture Act of                                        Guarantee
1939, as amended                                        Agreement
----------------                                        ---------

310(a).............................................     1(a)
310(b).............................................     1(c), 2.8
310(c).............................................     Not Applicable
311(a).............................................     2.2(b)
311(b).............................................     2.2(b)
311(c).............................................     Not Applicable
312(a).............................................     2.2(a)
312(b).............................................     2.2(b)
313................................................     2.3
314(a).............................................     2.4
314(b).............................................     Not Applicable
314(c).............................................     2.5
314(d).............................................     Not Applicable
314(e).............................................     1.1, 2.5, 3.2
314(f).............................................     2.1, 3.2
315(a).............................................     3.1(d)
315(b).............................................     2.7
315(c).............................................     3.1
315(d).............................................     3.1(d)
316(a).............................................     1.1, 2.6, 5.4
316(b).............................................     5.3
317(a).............................................     3.1
317(b).............................................     Not Applicable
318(a).............................................     1(a)
318(b).............................................     1
318(c).............................................     2.1(b)

     Note:  This Cross-Reference Table does not constitute part of this
Agreement and shall not affect the interpretation of any of its terms or
provisions.

                                     -iii-
<PAGE>

                TRUST PREFERRED SECURITIES GUARANTEE AGREEMENT

     THIS TRUST PREFERRED SECURITIES GUARANTEE AGREEMENT (this "Trust Preferred
Securities Guarantee"), dated as of December 1, 1999, is executed and delivered
by PARADIGM BANCORPORATION, INC., a Texas corporation (the "Guarantor"), and
FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association,
as trustee (the "Trust Preferred Guarantee Trustee"), for the benefit of the
Holders (as defined herein) from time to time of the Trust Preferred Securities
(as defined herein) of Paradigm Capital Trust I, a Delaware statutory business
trust (the "Trust").

                                   RECITALS

     WHEREAS, pursuant to an Amended and Restated Trust Agreement (the "Trust
Agreement"), dated as of December 1, 1999, among the trustees of the Trust named
therein, the Guarantor, as depositor, and the holders from time to time of
undivided beneficial interests in the assets of the Trust, the Trust is issuing
on the date hereof up to 512,500 preferred securities, having an aggregate
liquidation amount of $5,125,000 designated the 10.375% Cumulative Trust
Preferred Securities (the "Trust Preferred Securities");

     WHEREAS, as incentive for the Holders to purchase the Trust Preferred
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth in this Trust Preferred Securities Guarantee, to pay to the
Holders of the Trust Preferred Securities the Guarantee Payments (as defined
herein) and to make certain other payments on the terms and conditions set forth
herein.

     NOW, THEREFORE, in consideration of the purchase by each Holder of Trust
Preferred Securities, which purchase the Guarantor hereby agrees shall benefit
the Guarantor, the Guarantor executes and delivers this Trust Preferred
Securities Guarantee for the benefit of the Holders.

                                   ARTICLE I

                        DEFINITIONS AND INTERPRETATION

SECTION 1.1 DEFINITIONS AND INTERPRETATION.

     In this Trust Preferred Securities Guarantee, unless the context otherwise
requires:

     (a)  capitalized terms used in this Trust Preferred Securities Guarantee
but not defined in the preamble above have the respective meanings assigned to
them in this Section 1.1;

                                      -1-
<PAGE>

     (b)  terms defined in the Trust Agreement as of the date of execution of
this Trust Preferred Securities Guarantee have the same meaning when used in
this Trust Preferred Securities Guarantee, unless otherwise defined in this
Trust Preferred Securities Guarantee;

     (c)  a term defined anywhere in this Trust Preferred Securities Guarantee
has the same meaning throughout;

     (d)  all references to "the Trust Preferred Securities Guarantee" or "this
Trust Preferred Securities Guarantee" are to this Trust Preferred Securities
Guarantee as modified, supplemented or amended from time to time;

     (e)  all references in this Trust Preferred Securities Guarantee to
Articles and Sections are to Articles and Sections of this Trust Preferred
Securities Guarantee, unless otherwise specified;

     (f)  a term defined in the Trust Indenture Act has the same meaning when
used in this Trust Preferred Securities Guarantee, unless otherwise defined in
this Trust Preferred Securities Guarantee or unless the context otherwise
requires; and

     (g)  a reference to the singular includes the plural and vice versa.

     "Affiliate" has the same meaning as given to that term in Rule 405 of the
Securities Act of 1933, as amended, or any successor rule thereunder.

     "Business Day" means any day other than a Saturday, Sunday, a day on which
federal or state banking institutions in New York, New York or Wilmington,
Delaware are authorized or required by law, executive order or regulation to
close or a day on which the Corporate Trust Office of the Trust Preferred
Guarantee Trustee is closed for business.

     "Trust Preferred Guarantee Trustee" means First Union Trust Company,
National Association, until a Successor Trust Preferred Guarantee Trustee has
been appointed and has accepted such appointment pursuant to the terms of this
Trust Preferred Securities Guarantee and thereafter means each such Successor
Trust Preferred Guarantee Trustee.

     "Corporate Trust Office" means the office of the Trust Preferred Guarantee
Trustee at which the corporate trust business of the Trust Preferred Guarantee
Trustee shall, at any particular time, be principally administered, which office
at the date of execution of this Agreement is located at One Rodney Square, 920
King Street, 1st Floor, Wilmington, Delaware 19801, Attention:  Corporate Trust
Administration.

     "Covered Person" means any Holder or beneficial owner of  Trust Preferred
Securities.

     "Debentures" means the 10.375% Subordinated Debentures due December 1,
2029, of the Debenture Issuer held by the Property Trustee of the Trust.

                                      -2-
<PAGE>

     "Debenture Issuer" means Paradigm Bancorporation, Inc., issuer of the
Debentures under the Indenture.

     "Event of Default" means a default by the Guarantor on any of its payment
or other obligations under this Trust Preferred Securities Guarantee.

     "Guarantor" means Paradigm Bancorporation, Inc., a Texas corporation.

     "Guarantee Payments" means the following payments or distributions, without
duplication, with respect to the Trust Preferred Securities, to the extent not
paid or made by the Trust:  (i) any accumulated and unpaid Distributions (as
defined in the Trust Agreement) that are required to be paid on such Trust
Preferred Securities, to the extent the Trust shall have funds available
therefor, (ii) the redemption price, including all accumulated and unpaid
Distributions to the date of redemption (the "Redemption Price"), to the extent
the Trust has funds available therefor, with respect to any Trust Preferred
Securities called for redemption by the Trust, and (iii) upon a voluntary or
involuntary dissolution, winding-up or termination of the Trust (other than in
connection with the distribution of Debentures to the Holders in exchange for
Trust Preferred Securities as provided in the Trust Agreement), the lesser of
(a) the aggregate of the liquidation amount and all accumulated and unpaid
Distributions on the Trust Preferred Securities to the date of payment, to the
extent the Trust shall have funds available therefor (the "Liquidation
Distribution"), and (b) the amount of assets of the Trust remaining available
for distribution to Holders in liquidation of the Trust.

     "Holder" shall mean any holder, as registered on the books and records of
the Trust, of any Trust Preferred Securities; provided, however, that, in
determining whether the holders of the requisite percentage of Trust Preferred
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor, the Trust Preferred Guarantee Trustee or any of
their respective Affiliates.

     "Indemnified Person" means the Trust Preferred Guarantee Trustee, any
Affiliate of the Trust Preferred Guarantee Trustee, or any officers, directors,
shareholders, members, partners, employees, representatives, nominees,
custodians or agents of the Trust Preferred Guarantee Trustee.

     "Indenture" means the Indenture dated as of December 1, 1999, among the
Debenture Issuer and First Union Trust Company, National Association, as
trustee, and any indenture supplemental thereto pursuant to which certain
subordinated debt securities of the Debenture Issuer are to be issued to the
Property Trustee of the Trust.

     "Liquidation Amount" means the stated value of $10 per Trust Preferred
Security.

     "Liquidation Distribution" has the meaning provided therefor in the
definition of Guarantee Payments.

     "List of Holders" has the meaning provided therefor in Section 2.2(a)
hereof.

                                      -3-
<PAGE>

     "Majority in liquidation amount of the Trust Preferred Securities" means
the Holders of more than 50% of the Liquidation Amount of all of the Trust
Preferred Securities.

     "Officers' Certificate" means, with respect to any Person, a certificate
signed by two authorized officers of such Person, at least one of whom shall be
the principal executive officer, principal financial officer, principal
accounting officer, treasurer or any vice president of such Person.  Any
Officers' Certificate delivered with respect to compliance with a condition or
covenant provided for in this Trust Preferred Securities Guarantee shall
include:

     (a)  a statement that each officer signing the Officers' Certificate has
read the covenant or condition and the definition relating thereto;

     (b)  a brief statement of the nature and scope of the examination or
investigation undertaken by each officer in rendering the Officers' Certificate;

     (c)  a statement that each such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

     (d)  a statement as to whether, in the opinion of each such officer, such
condition or covenant has been complied with.

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever nature.

     "Redemption Price" has the meaning provided therefor in the definition of
Guarantee Payments.

     "Responsible Officer" means, with respect to the Trust Preferred Guarantee
Trustee, any officer within the Corporate Trust Office of the Trust Preferred
Guarantee Trustee with direct responsibility for the administration of this
Trust Preferred Securities Guarantee, including any vice-president, any
assistant vice-president, any assistant secretary or other officer or assistant
officer of the Trust Preferred Guarantee Trustee customarily performing
functions similar to those performed by any of the above designated officers and
also means, with respect to a particular corporate trust matter, any other
officer to whom such matter is referred because of that officer's knowledge of
and familiarity with the particular subject.

     "Successor Trust Preferred Guarantee Trustee" means a successor Trust
Preferred Guarantee Trustee possessing the qualifications to act as Trust
Preferred Guarantee Trustee under Section 4.1.

     "Trust Indenture Act" means the Trust Indenture Act of 1939,  as amended.

                                      -4-
<PAGE>

                                  ARTICLE II

                              TRUST INDENTURE ACT

SECTION 2.1. TRUST INDENTURE ACT; APPLICATION.

     (a)  This Trust Preferred Securities Guarantee is subject to the provisions
of the Trust Indenture Act that are required to be part of this Trust Preferred
Securities Guarantee and shall, to the extent applicable, be governed by such
provisions. Where this Trust Preferred Securities Guarantee requires compliance
with the Trust Indenture Act, such compliance shall only be required to the
extent the Trust Indenture Act is applicable.

     (b)  If and to the extent that any provision of this Trust Preferred
Securities Guarantee limits, qualifies or conflicts with the duties imposed by
Section 310 to 317, inclusive, of the Trust Indenture Act, such imposed duties
shall control.

SECTION 2.2. LISTS OF HOLDERS OF SECURITIES.

     (a)  In the event the Trust Preferred Guarantee Trustee is not also acting
in the capacity of the Property Trustee under the Trust Agreement, the Guarantor
shall cause to be provided to the Trust Preferred Guarantee Trustee with a list,
in such form as the Trust Preferred Guarantee Trustee may reasonably require, of
the names and addresses of the Holders of the Trust Preferred Securities ("List
of Holders") as of the date (i) within five (5) Business Days after the last day
of March, June, September and December, and (ii) at any other time within 30
days of receipt by the Guarantor of a written request for a List of Holders as
of a date no more than 15 days before such List of Holders is given to the Trust
Preferred Guarantee Trustee; provided, that the Guarantor shall not be obligated
to provide such List of Holders at any time the List of Holders does not differ
from the most recent List of Holders caused to have been given to the Trust
Preferred Guarantee Trustee by the Guarantor. The Trust Preferred Guarantee
Trustee may destroy any List of Holders previously given to it on receipt of a
new List of Holders.

     (b)  The Trust Preferred Guarantee Trustee shall comply with its
obligations under Sections 311(a), 311(b) and Section 312(b) of the Trust
Indenture Act.

SECTION 2.3. REPORTS BY THE TRUST PREFERRED GUARANTEE TRUSTEE.

     On or before July 15 of each year, the Trust Preferred Guarantee Trustee
shall provide to the Holders of the Trust Preferred Securities such reports as
are required by Section 313 of the Trust Indenture Act, if any, in the form and
in the manner provided by Section 313 of the Trust Indenture Act.  The Trust
Preferred Guarantee Trustee shall also comply with the requirements of Section
313(d) of the Trust Indenture Act.

                                      -5-
<PAGE>

SECTION 2.4. PERIODIC REPORTS TO TRUST PREFERRED GUARANTEE TRUSTEE.

     The Guarantor shall provide to the Trust Preferred Guarantee Trustee such
documents, reports and information as required by Section 314 (if any) and the
compliance certificate required by Section 314 of the Trust Indenture Act in the
form, in the manner and at the times required by Section 314 of the Trust
Indenture Act.

SECTION 2.5. EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

     The Guarantor shall provide to the Trust Preferred Guarantee Trustee such
evidence of compliance with any conditions precedent, if any, provided for in
this Trust Preferred Securities Guarantee that relate to any of the matters set
forth in Section 314(c) of the Trust Indenture Act. Any certificate or opinion
required to be given by an officer pursuant to Section 314(c)(1) may be given in
the form of an Officers' Certificate.

SECTION 2.6. EVENTS OF DEFAULT; WAIVER.

     The Holders of a Majority in liquidation amount of Trust Preferred
Securities may, by vote, on behalf of the Holders of all of the Trust Preferred
Securities, waive any past Event of Default and its consequences.  Upon such
waiver, any such Event of Default shall cease to exist, and any Event of Default
arising therefrom shall be deemed to have been cured, for every purpose of this
Trust Preferred Securities Guarantee, but no such waiver shall extend to any
subsequent or other default or Event of Default or impair any right consequent
thereon.

SECTION 2.7. EVENT OF DEFAULT; NOTICE.

     (a)  The Trust Preferred Guarantee Trustee shall, within five (5) Business
Days after the occurrence of an Event of Default, transmit by mail, first class
postage prepaid, to the Holders of the Trust Preferred Securities, notices of
all Events of Default actually known to a Responsible Officer of the Trust
Preferred Guarantee Trustee, unless such defaults have been cured before the
giving of such notice; provided, that, except in the case of a default by
Guarantor on any of its payment obligations, the Trust Preferred Guarantee
Trustee shall be protected in withholding such notice if and so long as a
Responsible Officer of the Trust Preferred Guarantee Trustee in good faith
determines that the withholding of such notice is in the interests of the
Holders of the Trust Preferred Securities.

     (b)  The Trust Preferred Guarantee Trustee shall not be deemed to have
knowledge of any Event of Default unless the Trust Preferred Guarantee Trustee
shall have received written notice, or of which a Responsible Officer of the
Trust Preferred Guarantee Trustee charged with the administration of the Trust
Agreement shall have obtained actual knowledge.

                                      -6-
<PAGE>

SECTION 2.8. CONFLICTING INTERESTS.

     The Trust Agreement shall be deemed to be specifically described in this
Trust Preferred Securities Guarantee for the purposes of clause (i) of the first
proviso contained in Section 310(b) of the Trust Indenture Act.

                                 ARTICLE III

        POWERS, DUTIES AND RIGHTS OF TRUST PREFERRED GUARANTEE TRUSTEE

SECTION 3.1. POWERS AND DUTIES OF THE TRUST PREFERRED GUARANTEE TRUSTEE.

     (a)  This Trust Preferred Securities Guarantee shall be held by the Trust
Preferred Guarantee Trustee for the benefit of the Holders of the Trust
Preferred Securities, and the Trust Preferred Guarantee Trustee shall not
transfer this Trust Preferred Securities Guarantee to any Person except a Holder
of Trust Preferred Securities exercising his or her rights pursuant to Section
5.4(b) or to a Successor Trust Preferred Guarantee Trustee on acceptance by such
Successor Trust Preferred Guarantee Trustee of its appointment to act as
Successor Trust Preferred Guarantee Trustee. The right, title and interest of
the Trust Preferred Guarantee Trustee shall automatically vest in any Successor
Trust Preferred Guarantee Trustee, and such vesting and cessation of title shall
be effective whether or not conveyancing documents have been executed and
delivered pursuant to the appointment of such Successor Trust Preferred
Guarantee Trustee.

     (b)  If an Event of Default actually known to a Responsible Officer of the
Trust Preferred Guarantee Trustee has occurred and is continuing, the Trust
Preferred Guarantee Trustee shall enforce this Trust Preferred Securities
Guarantee for the benefit of the Holders of the Trust Preferred Securities.

     (c)  The Trust Preferred Guarantee Trustee, before the occurrence of any
Event of Default and after the curing of all Events of Default that may have
occurred, shall undertake to perform only such duties as are specifically set
forth in this Trust Preferred Securities Guarantee, and no implied covenants
shall be read into this Trust Preferred Securities Guarantee against the Trust
Preferred Guarantee Trustee. In case an Event of Default has occurred (that has
not been cured or waived pursuant to Section 2.6) and is actually known to a
Responsible Officer of the Trust Preferred Guarantee Trustee, the Trust
Preferred Guarantee Trustee shall exercise such of the rights and powers vested
in it by this Trust Preferred Securities Guarantee, and use the same degree of
care and skill in its exercise thereof, as a prudent person would exercise or
use under the circumstances in the conduct of his or her own affairs.

     (d)  No provision of this Trust Preferred Securities Guarantee shall be
construed to relieve the Trust Preferred Guarantee Trustee from liability for
its own negligent action, its own negligent failure to act, or its own willful
misconduct, except that:

                                      -7-
<PAGE>

          (i)  prior to the occurrence of any Event of Default and after the
     curing or waiving of all such Events of Default that may have occurred:

               (A)  the duties and obligations of the Trust Preferred Guarantee
          Trustee shall be determined solely by the express provisions of this
          Trust Preferred Securities Guarantee, and the Trust Preferred
          Guarantee Trustee shall not be liable except for the performance of
          such duties and obligations as are specifically set forth in this
          Trust Preferred Securities Guarantee, and no implied covenants or
          obligations shall be read into this Trust Preferred Securities
          Guarantee against the Trust Preferred Guarantee Trustee; and

               (B)  in the absence of bad faith on the part of the Trust
          Preferred Guarantee Trustee, the Trust Preferred Guarantee Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon any certificates
          or opinions furnished to the Trust Preferred Guarantee Trustee and
          conforming to the requirements of this Trust Preferred Securities
          Guarantee; but in the case of any such certificates or opinions that
          by any provision hereof are specifically required to be furnished to
          the Trust Preferred Guarantee Trustee, the Trust Preferred Guarantee
          Trustee shall be under a duty to examine the same to determine whether
          or not they conform to the requirements of this Trust Preferred
          Securities Guarantee;

          (ii)  the Trust Preferred Guarantee Trustee shall not be liable for
     any error of judgment made in good faith by a Responsible Officer of the
     Trust Preferred Guarantee Trustee, unless it shall be proved that the Trust
     Preferred Guarantee Trustee was negligent in ascertaining the pertinent
     facts upon which such judgment was made;

          (iii)  the Trust Preferred Guarantee Trustee shall not be liable with
     respect to any action taken or omitted to be taken by it in good faith in
     accordance with the direction of the Holders of not less than a Majority in
     liquidation amount of the Trust Preferred Securities relating to the time,
     method and place of conducting any proceeding for any remedy available to
     the Trust Preferred Guarantee Trustee, or exercising any trust or power
     conferred upon the Trust Preferred Guarantee Trustee under this Trust
     Preferred Securities Guarantee; and

          (iv)  no provision of this Trust Preferred Securities Guarantee shall
     require the Trust Preferred Guarantee Trustee to expend or risk its own
     funds or otherwise incur personal financial liability in the performance of
     any of its duties or in the exercise of any of its rights or powers, if the
     Trust Preferred Guarantee Trustee shall have reasonable grounds for
     believing that the repayment of such funds or liability is not reasonably
     assured to it under the terms of this Trust Preferred Securities Guarantee
     or indemnity, reasonably satisfactory to the Trust Preferred Guarantee
     Trustee, against such risk or liability is not reasonably assured to it.

                                      -8-
<PAGE>

SECTION 3.2. CERTAIN RIGHTS OF TRUST PREFERRED GUARANTEE TRUSTEE.

     (a)  Subject to the provisions of Section 3.1:

          (i)  the Trust Preferred Guarantee Trustee may conclusively rely, and
     shall be fully protected in acting or refraining from acting upon, any
     resolution, certificate, statement, instrument, opinion, report, notice,
     request, direction, consent, order, bond, debenture, note, other evidence
     of indebtedness or other paper or document believed by it to be genuine and
     to have been signed, sent or presented by the proper party or parties;

          (ii)  any direction or act of the Guarantor contemplated by this Trust
     Preferred Securities Guarantee shall be sufficiently evidenced by an
     Officers' Certificate;

          (iii)  whenever, in the administration of this Trust Preferred
     Securities Guarantee, the Trust Preferred Guarantee Trustee shall deem it
     desirable that a matter be proved or established before taking, suffering
     or omitting any action hereunder, the Trust Preferred Guarantee Trustee
     (unless other evidence is herein specifically prescribed) may, in the
     absence of bad faith on its part, request and conclusively rely upon an
     Officers' Certificate which, upon receipt of such request, shall be
     promptly delivered by the Guarantor;

          (iv)  the Trust Preferred Guarantee Trustee shall have no duty to see
     to any recording, filing or registration of any instrument (or any re-
     recording, refiling or registration thereof);

          (v)  the Trust Preferred Guarantee Trustee may consult with counsel,
     and the written advice or opinion of such counsel with respect to legal
     matters shall be full and complete authorization and protection in respect
     of any action taken, suffered or omitted by it hereunder in good faith and
     in accordance with such advice or opinion. Such counsel may be counsel to
     the Guarantor or any of its Affiliates and may include any of its
     employees. The Trust Preferred Guarantee Trustee shall have the right at
     any time to seek instructions concerning the administration of this Trust
     Preferred Securities Guarantee from any court of competent jurisdiction;

          (vi)  the Trust Preferred Guarantee Trustee shall be under no
     obligation to exercise any of the rights or powers vested in it by this
     Trust Preferred Securities Guarantee at the request or direction of any
     Holder, unless such Holder shall have provided to the Trust Preferred
     Guarantee Trustee such security and indemnity, reasonably satisfactory to
     the Trust Preferred Guarantee Trustee, against the costs, expenses
     (including attorneys' fees and expenses and the expenses of the Trust
     Preferred Guarantee Trustee's agents, nominees or custodians) and
     liabilities that might be incurred by it in complying with such request or
     direction, including such reasonable advances as may be requested by the
     Trust Preferred Guarantee Trustee; provided that, nothing contained in this
     Section 3.2(a)(vi) shall be taken to relieve the Trust Preferred Guarantee
     Trustee, upon the occurrence of an Event of Default,

                                      -9-
<PAGE>

     of its obligation to exercise the rights and powers vested in it by this
     Trust Preferred Securities Guarantee;

          (vii)  the Trust Preferred Guarantee Trustee shall not be bound to
     make any investigation into the facts or matters stated in any resolution,
     certificate, statement, instrument, opinion, report, notice, request,
     direction, consent, order, bond, debenture, note, other evidence of
     indebtedness or other paper or document, but the Trust Preferred Guarantee
     Trustee, in its discretion, may make such further inquiry or investigation
     into such facts or matters as it may see fit;

          (viii)  the Trust Preferred Guarantee Trustee may execute any of the
     trusts or powers hereunder or perform any duties hereunder either directly
     or by or through agents, nominees, custodians or attorneys, and the Trust
     Preferred Guarantee Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder;

          (ix)  any action taken by the Trust Preferred Guarantee Trustee or its
     agents hereunder shall bind the Holders of the Trust Preferred Securities,
     and the signature of the Trust Preferred Guarantee Trustee or its agents
     alone shall be sufficient and effective to perform any such action. No
     third party shall be  required to inquire as to the authority of the Trust
     Preferred Guarantee Trustee to so act or as to its compliance with any of
     the terms and provisions of this Trust Preferred Securities Guarantee, both
     of which shall be conclusively evidenced by the Trust Preferred Guarantee
     Trustee's or its agent's taking such action;

          (x)  whenever in the administration of this Trust Preferred Securities
     Guarantee the Trust Preferred Guarantee Trustee shall deem it desirable to
     receive instructions with respect to enforcing any remedy or right or
     taking any other action hereunder, the Trust Preferred Guarantee Trustee
     (i) may request instructions from the Holders of a Majority in liquidation
     amount of the Trust Preferred Securities, (ii) may refrain from enforcing
     such remedy or right or taking such other action until such instructions
     are received, and (iii) shall be protected in conclusively relying on or
     acting in accordance with such instructions.

     (b)  No provision of this Trust Preferred Securities Guarantee shall be
deemed to impose any duty or obligation on the Trust Preferred Guarantee Trustee
to perform any act or acts or exercise any right, power, duty or obligation
conferred or imposed on it in any jurisdiction in which it shall be illegal, or
in which the Trust Preferred Guarantee Trustee shall be unqualified or
incompetent in accordance with applicable law, to perform any such act or acts
or to exercise any such right, power, duty or obligation.  No permissive power
or authority available to the Trust Preferred Guarantee Trustee shall be
construed to be a duty.

SECTION 3.3. NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE.

     The Recitals contained in this Guarantee shall be taken as the statements
of the Guarantor, and the Trust Preferred Guarantee Trustee does not assume any
responsibility for their correctness.

                                      -10-
<PAGE>

The Trust Preferred Guarantee Trustee makes no representation as to the validity
or sufficiency of this Trust Preferred Securities Guarantee.

                                  ARTICLE IV

                       TRUST PREFERRED GUARANTEE TRUSTEE

SECTION 4.1. TRUST PREFERRED GUARANTEE TRUSTEE; ELIGIBILITY.

     (a)  There shall at all times be a Trust Preferred Guarantee Trustee which
shall:

          (i)  not be an Affiliate of the Guarantor; and

          (ii)  be a corporation organized and doing business under the laws of
     the United States of America or any State or Territory thereof or of the
     District of Columbia, or a corporation or Person permitted by the
     Securities and Exchange Commission to act as an institutional trustee under
     the Trust Indenture Act, authorized under such laws to exercise corporate
     trust powers, having a combined capital and surplus of at least
     $50,000,000, and subject to supervision or examination by Federal, State,
     Territorial or District of Columbia authority. If such corporation
     publishes reports of condition at least annually, pursuant to law or to the
     requirements of the supervising or examining authority referred to above,
     then, for the purposes of this Section 4.1(a)(ii), the combined capital and
     surplus of such corporation shall be deemed to be its combined capital and
     surplus as set forth in its most recent report of condition so published.

     (b)  If at any time the Trust Preferred Guarantee Trustee shall cease to be
eligible to so act under Section 4.1(a), the Trust Preferred Guarantee Trustee
shall immediately resign in the manner and with the effect set out in Section
4.2(c).

     (c)  If the Trust Preferred Guarantee Trustee has or shall acquire any
"conflicting interest" within the meaning of Section 310(b) of the Trust
Indenture Act, the Trust Preferred Guarantee Trustee and Guarantor shall in all
respects comply with the provisions of Section 310(b) of the Trust Indenture
Act.

SECTION 4.2. APPOINTMENT, REMOVAL AND RESIGNATION OF TRUST PREFERRED GUARANTEE
             TRUSTEES.

     (a)  Subject to Section 4.2(b), the Trust Preferred Guarantee Trustee may
be appointed or removed without cause at any time by the Guarantor.

     (b)  The Trust Preferred Guarantee Trustee shall not be removed in
accordance with Section 4.2(a) until a Successor Trust Preferred Guarantee
Trustee has been appointed and has accepted such appointment by written
instrument executed by such Successor Trust Preferred Guarantee Trustee and
delivered to the Guarantor.

                                      -11-
<PAGE>

     (c)  The Trust Preferred Guarantee Trustee appointed to office shall hold
office until a Successor Trust Preferred Guarantee Trustee shall have been
appointed or until its removal or resignation. The Trust Preferred Guarantee
Trustee may resign from office (without need for prior or subsequent accounting)
by an instrument in writing executed by the Trust Preferred Guarantee Trustee
and delivered to the Guarantor, which resignation shall not take effect until a
Successor Trust Preferred Guarantee Trustee has been appointed and has accepted
such appointment by instrument in writing executed by such Successor Trust
Preferred Guarantee Trustee and delivered to the Guarantor and the resigning
Trust Preferred Guarantee Trustee.

     (d)  If no Successor Trust Preferred Guarantee Trustee shall have been
appointed and accepted appointment as provided in this Section 4.2 within 60
days after delivery to the Guarantor of an instrument of resignation, the
resigning Trust Preferred Guarantee Trustee may petition any court of competent
jurisdiction for appointment of a Successor Trust Preferred Guarantee Trustee.
Such court may thereupon, after prescribing such notice, if any, as it may deem
proper, appoint a Successor Trust Preferred Guarantee Trustee.

     (e)  No Trust Preferred Guarantee Trustee shall be liable for the acts or
omissions to act of any Successor Trust Preferred Guarantee Trustee.

     (f)  Upon termination of this Trust Preferred Securities Guarantee or
removal or resignation of the Trust Preferred Guarantee Trustee pursuant to this
Section 4.2, the Guarantor shall pay to the Trust Preferred Guarantee Trustee
all amounts accrued to the date of such termination, removal or resignation.

                                   ARTICLE V

                                   GUARANTEE

SECTION 5.1. GUARANTEE.

     The Guarantor irrevocably and unconditionally agrees to pay in full to the
Holders the Guarantee Payments (without duplication of amounts theretofore paid
by the Trust), as and when due, regardless of any defense, right of set-off or
counterclaim that the Trust may have or assert. The Guarantor's obligation to
make a Guarantee Payment may be satisfied by direct payment of the required
amounts by the Guarantor to the Holders or by causing the Trust to pay such
amounts to the Holders.

SECTION 5.2. WAIVER OF NOTICE AND DEMAND.

     The Guarantor hereby waives notice of acceptance of this Trust Preferred
Securities Guarantee and of any liability to which it applies or may apply,
presentment, demand for payment, any right to require a proceeding first against
the Trust or any other Person before proceeding against

                                      -12-
<PAGE>

the Guarantor, protest, notice of nonpayment, notice of dishonor, notice of
redemption and all other notices and demands.

SECTION 5.3. OBLIGATIONS NOT AFFECTED.

     The obligations, covenants, agreements and duties of the Guarantor under
this Trust Preferred Securities Guarantee shall in no way be affected or
impaired by reason of the happening from time to time of any of the following:

     (a)  the release or waiver, by operation of law or otherwise, of the
performance or observance by the Trust of any express or implied agreement,
covenant, term or condition relating to the Trust Preferred Securities to be
performed or observed by the Trust;

     (b)  the extension of time for the payment by the Trust of all or any
portion of the Distributions, Redemption Price, Liquidation Distribution or any
other sums payable under the terms of the Trust Preferred Securities or the
extension of time for the performance of any other obligation under, arising out
of, or in connection with, the Trust Preferred Securities (other than an
extension of time for payment of Distributions, Redemption Price, Liquidation
Distribution or other sum payable that results from the extension of any
interest payment period on the Debentures or any extension of the maturity date
of the Debentures permitted by the Indenture);

     (c)  any failure, omission, delay or lack of diligence on the part of the
Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Trust Preferred
Securities, or any action on the part of the Trust granting indulgence or
extension of any kind;

     (d)  the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust;

     (e)  any invalidity of, or defect or deficiency in, the Trust Preferred
Securities;

     (f)  any failure or omission to receive any regulatory approval or consent
required in connection with the Trust Preferred Securities (or the common equity
securities issued by the Trust), including the failure to receive any approval
of the Board of Governors of the Federal Reserve System required for the
redemption of the Trust Preferred Securities;

     (g)  the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

     (h)  any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 5.3 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

                                      -13-
<PAGE>

     There shall be no obligation of the Holders to give notice to, or obtain
consent of, the Guarantor with respect to the happening of any of the foregoing.

SECTION 5.4. RIGHTS OF HOLDERS.

     (a)  Subject to Section 5.4(b), the Holders of a Majority in liquidation
amount of the Trust Preferred Securities have the right to direct the time,
method and place of conducting of any proceeding for any remedy available to the
Trust Preferred Guarantee Trustee in respect of this Trust Preferred Securities
Guarantee or exercising any trust or power conferred upon the Trust Preferred
Guarantee Trustee under this Trust Preferred Securities Guarantee.

     (b)  Any Holder of Trust Preferred Securities may institute and prosecute a
legal proceeding directly against the Guarantor to enforce its rights under this
Trust Preferred Securities Guarantee without first instituting a legal
proceeding against the Trust, the Trust Preferred Guarantee Trustee or any other
Person.

SECTION 5.5. GUARANTEE OF PAYMENT.

     This Trust Preferred Securities Guarantee creates a guarantee of payment
and not of collection.

SECTION 5.6. SUBROGATION.

     The Guarantor shall be subrogated to all (if any) rights of the Holders of
Trust Preferred Securities against the Trust in respect of any amounts paid to
such Holders by the Guarantor under this Trust Preferred Securities Guarantee;
provided, however, that the Guarantor shall not (except to the extent required
by mandatory provisions of law) be entitled to enforce or exercise any right
that it may acquire by way of subrogation or any indemnity, reimbursement or
other agreement, in all cases as a result of payment under this Trust Preferred
Securities Guarantee, if, at the time of any such payment, any amounts are due
and unpaid under this Trust Preferred Securities Guarantee. If any amount shall
be paid to the Guarantor in violation of the preceding sentence, the Guarantor
agrees to hold such amount in trust for the Holders and to pay over such amount
to the Holders.

SECTION 5.7. INDEPENDENT OBLIGATIONS.

     The Guarantor acknowledges that its obligations hereunder are independent
of the obligations of the Trust with respect to the Trust Preferred Securities,
and that the Guarantor shall be liable as principal and as debtor hereunder to
make Guarantee Payments pursuant to the terms of this Trust Preferred Securities
Guarantee notwithstanding the occurrence of any event referred to in subsections
(a) through (h), inclusive, of Section 5.3 hereof.

                                      -14-
<PAGE>

                                  ARTICLE VI

                   LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 6.1. LIMITATION OF TRANSACTIONS.

     So long as any Trust Preferred Securities remain outstanding, if there
shall have occurred an Event of Default under this Trust Preferred Securities
Guarantee, an event of default under the Indenture, an event of default under
the Trust Agreement or during an Extended Interest Payment Period (as defined in
the Indenture), then (a) the Guarantor shall not, and will not permit any
Subsidiary to, declare or pay any dividend on, make any distributions with
respect to, or redeem, purchase, acquire or make a liquidation payment with
respect to, any of its capital stock (other than (i) as a result of a
reclassification of its capital stock for another class of its capital stock or
(ii) declarations of payments of dividends or distributions of capital stock by
a Subsidiary of the Guarantor to the Guarantor); (b) the Guarantor shall not,
and will not permit any Subsidiary to, make any payment of interest or principal
on or repay, repurchase or redeem any debt securities issued by the Guarantor
which rank pari passu with or junior to the Debentures; (c) the Guarantor shall
not make any guarantee payments with respect to any guarantee by the Guarantor
of the debt securities of any Subsidiary of the Guarantor if such guarantee
ranks pari passu with or junior in interest to the Debentures; and (d) the
Guarantor shall not redeem, purchase or acquire less than all of the outstanding
Debentures or any of the Trust Preferred Securities.

SECTION 6.2. RANKING.

     This Trust Preferred Securities Guarantee will constitute an unsecured
obligation of the Guarantor and will rank subordinate and junior in right of
payment to all Senior Debt, Subordinated Debt and Additional Senior Obligations,
as defined in the Indenture, of the Guarantor, to the extent and in the manner
set forth in the Indenture, and the applicable provisions of the Indenture will
apply, in all relevant respects, to the obligations of the Guarantor hereunder.

                                  ARTICLE VII

                                  TERMINATION

SECTION 7.1. TERMINATION.

     This Trust Preferred Securities Guarantee shall terminate (a) upon full
payment of the Redemption Price of all Trust Preferred Securities, (b) upon full
payment of the amounts payable in accordance with the Trust Agreement upon
liquidation of the Trust, or (c) upon distribution of the Debentures to the
Holders of the Trust Preferred Securities. Notwithstanding the foregoing, this
Trust Preferred Securities Guarantee shall continue to be effective or shall be
reinstated, as the case may be, if at any time any Holder of Trust Preferred
Securities must restore payment of any sums paid under the Trust Preferred
Securities or under this Trust Preferred Securities Guarantee.

                                      -15-
<PAGE>

                                 ARTICLE VIII

                                INDEMNIFICATION

SECTION 8.1. EXCULPATION.

     (a)  No Indemnified Person shall be liable, responsible or accountable in
damages or otherwise to the Guarantor or any Covered Person for any loss, damage
or claim incurred by reason of any act or omission performed or omitted by such
Indemnified Person in good faith in accordance with this Trust Preferred
Securities Guarantee and in a manner that such Indemnified Person reasonably
believed to be within the scope of the authority conferred on such Indemnified
Person by this Trust Preferred Securities Guarantee or by law, except that an
Indemnified Person shall be liable for any such loss, damage or claim incurred
by reason of such Indemnified Person's negligence or willful misconduct with
respect to such acts or omissions.

     (b)  An Indemnified Person shall be fully protected in relying in good
faith upon the records of the Guarantor and upon such information, opinions,
reports or statements presented to the Guarantor by any Person as to matters the
Indemnified Person reasonably believes are within such other Person's
professional or expert competence and who has been selected with reasonable care
by or on behalf of the Guarantor, including information, opinions, reports or
statements as to the value and amount of the assets, liabilities, profits,
losses, or any other facts pertinent to the existence and amount of assets from
which Distributions to Holders of Trust Preferred Securities might properly be
paid.

SECTION 8.2. INDEMNIFICATION.

     The Guarantor agrees to indemnify each Indemnified Person for, and to hold
each Indemnified Person harmless against, any loss, liability or expense
incurred without negligence or bad faith on its part, arising out of or in
connection with the acceptance or administration of the trust or trusts
hereunder, including the costs and expenses (including reasonable legal fees and
expenses) of defending itself against, or investigating, any claim or liability
in connection with the exercise or performance of any of its powers or duties
hereunder. The obligation to indemnify as set forth in this Section 8.2 shall
survive the termination of this Trust Preferred Securities Guarantee.

                                      -16-
<PAGE>

                                  ARTICLE IX

                                 MISCELLANEOUS

SECTION 9.1. SUCCESSORS AND ASSIGNS.

     All guarantees and agreements contained in this Trust Preferred Securities
Guarantee shall bind the successors, assigns, receivers, trustees and
representatives of the Guarantor and shall inure to the benefit of the Holders
of the Trust Preferred Securities then outstanding.

SECTION 9.2. AMENDMENTS.

     Except with respect to any changes that do not materially adversely affect
the rights of Holders (in which case no consent of Holders will be required),
this Trust Preferred Securities Guarantee may only be amended with the prior
approval of the Holders of at least a Majority in Liquidation Amount of the
Trust Preferred Securities. The provisions of Article VI of the Trust Agreement
with respect to meetings of Holders of the Trust Preferred Securities apply to
the giving of such approval.

SECTION 9.3. NOTICES.

     All notices provided for in this Trust Preferred Securities Guarantee shall
be in writing, duly signed by the party giving such notice, and shall be
delivered, telecopied or mailed by registered or certified mail, as follows:

     (a)  If given to the Trust Preferred Guarantee Trustee, at the Trust
Preferred Guarantee Trustee's mailing address set forth below (or such other
address as the Trust Preferred Guarantee Trustee may give notice of to the
Holders of the Trust Preferred Securities):

               First Union Trust Company, National Association
               One Rodney Square
               920 King Street, 1st Floor
               Wilmington, Delaware 19801
               Attention:  Corporate Trust Administration

     (b)  If given to the Guarantor, at the Guarantor's mailing address set
forth below (or such other address as the Guarantor may give notice of to the
Holders of the Trust Preferred Securities):

               Paradigm Bancorporation, Inc.
               2828 FM 1960
               Houston, Texas  77073
               Attention: Peter E. Fisher, President

                                      -17-
<PAGE>

     (c)  If given to any Holder of Trust Preferred Securities, at the address
set forth on the books and records of the Trust. All such notices shall be
deemed to have been given when received in person, telecopied with receipt
confirmed, or mailed by first class mail, postage prepaid except that if a
notice or other document is refused delivery or cannot be delivered because of a
changed address of which no notice was given, such notice or other document
shall be deemed to have been delivered on the date of such refusal or inability
to deliver.

SECTION 9.4. BENEFIT.

     This Trust Preferred Securities Guarantee is solely for the benefit of the
Holders of the Trust Preferred Securities and, subject to Section 3.1(a), is not
separately transferable from the Trust Preferred Securities.

SECTION 9.5. GOVERNING LAW.

     THIS TRUST PREFERRED SECURITIES GUARANTEE SHALL BE GOVERNED BY, AND
CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS.

                           [SIGNATURE PAGE FOLLOWS]

                                      -18-
<PAGE>

     This Trust Preferred Securities Guarantee is executed as of the day and
year first above written.

                              PARADIGM BANCORPORATION, INC.,
                              as Guarantor

                              By: ____________________________________
                              Name: Peter E. Fisher
                              Its: President

                              FIRST UNION TRUST COMPANY,
                              NATIONAL ASSOCIATION, as
                              Trust Preferred Guarantee Trustee

                              By: ____________________________________
                              Name: Edward L. Truitt, Jr.
                              Its: Vice President

                                      -19-

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