<PAGE>

                                                                   EXHIBIT 10.6

                       WEST POINTE BANK AND TRUST COMPANY
                      SUPPLEMENTAL LIFE INSURANCE AGREEMENT

        THIS SUPPLEMENTAL LIFE INSURANCE AGREEMENT (the "Agreement") is adopted
this 30th day of December, 2005, by and between WEST POINTE BANK AND TRUST
COMPANY, a state-chartered commercial bank located in Belleville, Illinois (the
"Company"), and SHARON L. CLEVELAND (the "Executive").

        The purpose of this Agreement is to retain and reward the Executive, by
dividing the death proceeds of certain life insurance policies which are owned
by the Company on the life of the Executive with the designated beneficiary of
the Executive. The Company will pay the life insurance premiums from its general
assets.

                                    ARTICLE 1
                                   DEFINITIONS

        Whenever used in this Agreement, the following terms shall have the
meanings specified:

1.1     "Beneficiary" means each designated person, or the estate of the
        deceased Executive, entitled to benefits, if any, upon the death of the
        Executive.

1.2     "Beneficiary Designation Form" means the form established from time to
        time by the Plan Administrator that the Executive completes, signs, and
        returns to the Plan Administrator to designate one or more
        Beneficiaries.

1.3     "Board" means the Board of Directors of the Company as from time to time
        constituted.

1.4     "Change in Control" means a change in the ownership or effective control
        of the Company, or in the ownership of a substantial portion of the
        assets of the Company, as such change is defined in Section 409A of the
        Code and regulations thereunder.

1.5     "Code" means the Internal Revenue Code of 1986, as amended.

1.6     "Company's Interest" means the benefit set forth in Section 2.1.

1.7     "Executive's Interest" means the benefit set forth in Section 2.2.

1.8     "Insurer" means the insurance company issuing the Policy on the life of
        the Executive.

1.9     "Net Death Proceeds" means the total death proceeds of the Policy minus
        the greater of (i) the cash surrender value or (ii) the aggregate
        premiums paid by the Company.

1.10    "Plan Administrator" means the plan administrator described in Article
        11.

1.11    "Policy" or "Policies" means the individual insurance policy or policies
        adopted by the Company for purposes of insuring the Executive's life
        under this Agreement.

1.12    "Separation from Service" means that the Executive's service, as an
        employee and independent contractor, to the Company and any member of a
        controlled group as defined

<PAGE>

                                                                   EXHIBIT 10.6

        in Section 414 of the Code to which the Company belongs, has terminated
        for any reason, other than by reason of a leave of absence approved by
        the Company or the death of the Executive.

1.13    "Vested Insurance Benefit" means the Company will provide the Executive
        with continued insurance coverage from the date of vesting until death,
        subject to the forfeiture provisions detailed in Section 3.2. Article 3
        explains how the Executive achieves vested status.

                                    ARTICLE 2
                           POLICY OWNERSHIP/INTERESTS

2.1     Company's Interest. The Company shall own the Policies and shall have
        the right to exercise all incidents of ownership and, subject to Article
        4, the Company may terminate a Policy without the consent of the
        Executive. The Company shall be the beneficiary of the remaining death
        proceeds of the Policies after the Executive's Interest is determined
        according to Section 2.2 below.

2.2     Executive's Interest. The Executive, or the Executive's assignee, shall
        have the right to designate the Beneficiary of an amount of death
        proceeds as specified in Section 2.2.1 or 2.2.2. The Executive shall
        also have the right to elect and change settlement options with respect
        to the Executive's Interest by providing written notice to the Company
        and the Insurer.

        2.2.1   Death Prior to Separation from Service. If the Executive dies
                while employed by the Company, the Executive's Beneficiary shall
                be entitled to a benefit equal to one hundred fifty thousand
                dollars ($150,000), provided that such benefit shall not exceed
                the Net Death Proceeds.

        2.2.2   Death After Separation from Service. If, pursuant to Article 3,
                the Executive has a Vested Insurance Benefit at the date of
                death, the Executive's Beneficiary shall be entitled to a
                benefit equal to one hundred fifty thousand dollars ($150,000),
                provided that such amount shall not exceed the Net Death
                Proceeds. If the Executive has not achieved a Vested Insurance
                Benefit on the date of death, the Beneficiary will not be
                entitled to a benefit under this Agreement.

                                    ARTICLE 3
                                     VESTING

3.1     Vested Insurance Benefit. The Executive shall have a Vested Insurance
        Benefit equal to the amount specified in Section 2.2 at the earliest of
        the following events:

        3.1.1   Attainment of age sixty five (65) while in the employ of the
                Company

        3.1.2   A Change of Control while employed by the Company; or

        3.1.3   Adoption, by the Board at its discretion, of a resolution
                entitling the Executive to the Vested Insurance Benefit in
                Section 2.2 under circumstances not otherwise addressed in this
                Section 3.1.
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                                                                    EXHIBIT 10.6

3.2     Forfeiture of Benefit. Notwithstanding the provisions of Section 3.1,
        the Executive will forfeit his or her Vested Insurance Benefit if: (i)
        the Executive vested pursuant to Section 3.1.2 and becomes gainfully
        employed by an entity other than the Company; or (ii) the Executive
        provides written notice to the Company declining further participation
        in the Agreement.

                                    ARTICLE 4
                               COMPARABLE COVERAGE

4.1     Option to Purchase. The Company shall not sell, surrender or transfer
        ownership of the Policy while this Agreement is in effect without first
        giving the Executive or the Executive's transferee the option to
        purchase the Policy by one of the methods specified below for a period
        of sixty (60) days from written notice of such intention. This provision
        shall not impair the right of the Company to terminate this Agreement.

        4.1.1   Full Policy Purchase. If the Company elects to terminate the
                Agreement the Executive or his/her transferee shall have the
                right to purchase the Policy from the Company. The purchase
                price shall be an amount equal to the cash surrender value of
                the Policy. Upon receipt of such purchase price, the Company
                shall assign ownership of the Policy to the Executive or his/her
                transferee and relinquish all existing rights to the Policy.

        4.1.2   Net Death Proceeds Purchase. If the Company elects to terminate
                the Agreement the Executive or his/her transferee shall have the
                right to purchase the Executive's Interest in the Policy as
                identified in Section 2.2 above. The Company shall withdraw the
                Policy's cash surrender value and assign ownership of the Policy
                to the Executive or his/her transferee. The Executive or his/her
                transferee shall thereafter assume responsibility for any fees
                and/or cost of insurance charges (the "Policy Expenses") as
                necessary to sustain the Policy. If the Executive or his/her
                transferee incurs Policy Expenses, the Company shall annually
                reimburse the equal to the annual Policy Expenses divided by one
                minus the Executive's combined marginal income tax rate for the
                calendar year immediately preceding such payment. The Company's
                reimbursement payment shall be made within 30 days following
                receipt by the Company of evidence of the payment of the Policy
                Expenses. The Company's obligation to make reimbursement
                payments will automatically terminate upon the Executive's
                Separation from Service prior to Normal Retirement Age. If the
                Executive's Separation from Service occurs at or after Normal
                Retirement Age, reimbursement payments shall continue until the
                Executive's death.

4.2     Comparable Coverage. Nothing herein negates the Company's right to amend
        or terminate this Agreement under Article 10. The Company is not
        obligated to provide any additional resources to maintain the Policy in
        full force and effect. In addition, the Company may replace each Policy
        with a comparable insurance policy to cover the benefit provided under
        this Agreement and the Company and the Executive shall execute a new
        Split-Dollar Policy Endorsement for each new Policy. The cash surrender
        value and any additional death proceeds exclusive of those designated in
        Section 2.2 above for each new Policy or any comparable policy shall be
        subject to the claims of the

<PAGE>

                                                                    EXHIBIT 10.6

        Company's creditors. In the event that the Company decides to maintain
        the Policy after the Executive's rights under this Agreement are
        terminated, the Company shall be the direct beneficiary of the entire
        death proceeds of the Policy.

4.3     Change in Control. Upon Separation from Service following a Change in
        Control, the Company shall maintain the Policy in full force and effect
        and in no event shall the Company amend, terminate, or otherwise
        abrogate the Executive's interest in the Policy. However, the Company
        may replace the Policy with a comparable insurance policy to cover the
        benefit provided under this Agreement. The cash surrender value and any
        additional death proceeds exclusive of those designated in Section 2.2
        above for the Policy or any comparable policy shall be subject to the
        claims of the Company's creditors.

                                    ARTICLE 5
                           PREMIUMS AND IMPUTED INCOME

5.1     Premium Payment. The Company shall pay all premiums due on all Policies.

5.2     Economic Benefit. The Company shall determine the economic benefit
        attributable to the Executive based on the life insurance premium factor
        for the Executive's age multiplied by the aggregate death benefit
        payable to the Beneficiary. The "life insurance premium factor" is the
        minimum factor applicable under guidance published pursuant to Treasury
        Reg. Section 1.61-22(d)(3)(ii) or any subsequent authority.

5.3     Imputed Income. The Company shall impute the economic benefit to the
        Executive on an annual basis, by adding the economic benefit to the
        Executive's W-2, or if applicable, Form 1099.

                                    ARTICLE 6
                                  BENEFICIARIES

6.1     Beneficiary. The Executive shall have the right, at any time, to
        designate a Beneficiary(ies) to receive any benefits payable under the
        Agreement upon the death of the Executive. The Beneficiary designated
        under this Agreement may be the same as or different from the
        beneficiary designation under any other Agreement of the Company in
        which the Executive participates.

6.2     Beneficiary Designation; Change. The Executive shall designate a
        Beneficiary by completing and signing the Beneficiary Designation Form,
        and delivering it to the Company or its designated agent. The
        Executive's beneficiary designation shall be deemed automatically
        revoked if the Beneficiary predeceases the Executive or if the Executive
        names a spouse as Beneficiary and the marriage is subsequently
        dissolved. The Executive shall have the right to change a Beneficiary by
        completing, signing and otherwise complying with the terms of the
        Beneficiary Designation Form and the Company's rules and procedures, as
        in effect from time to time. Upon the acceptance by the Company of a new
        Beneficiary Designation Form, all Beneficiary designations previously
        filed shall be cancelled. The Company shall be entitled to rely on the
        last Beneficiary Designation Form filed by the Executive and accepted by
        the Company prior to the Executive's death.

<PAGE>

                                                                    EXHIBIT 10.6

6.3     Acknowledgment. No designation or change in designation of a Beneficiary
        shall be effective until received, accepted and acknowledged in writing
        by the Company or its designated agent.

6.4     No Beneficiary Designation. If the Executive dies without a valid
        designation of beneficiary, or if all designated Beneficiaries
        predecease the Executive, then the Executive's surviving spouse shall be
        the designated Beneficiary. If the Executive has no surviving spouse,
        the benefits shall be made payable to the personal representative of the
        Executive's estate.

6.5     Facility of Payment. If the Company determines in its discretion that a
        benefit is to be paid to a minor, to a person declared incompetent, or
        to a person incapable of handling the disposition of that person's
        property, the Company may direct payment of such benefit to the
        guardian, legal representative or person having the care or custody of
        such minor, incompetent person or incapable person. The Company may
        require proof of incompetence, minority or guardianship as it may deem
        appropriate prior to distribution of the benefit. Any payment of a
        benefit shall be a payment for the account of the Executive and the
        Executive's Beneficiary, as the case may be, and shall be a complete
        discharge of any liability under the Agreement for such payment amount.

                                    ARTICLE 7
                                   ASSIGNMENT

        The Executive may irrevocably assign without consideration all of the
Executive's Interest in this Agreement to any person, entity, or trust. In the
event the Executive shall transfer all of the Executive's Interest, then all of
the Executive's Interest in this Agreement shall be vested in the Executive's
transferee, who shall be substituted as a party hereunder, and the Executive
shall have no further interest in this Agreement.

                                    ARTICLE 8
                                     INSURER

        The Insurer shall be bound only by the terms of its given Policy. The
Insurer shall not be bound by or deemed to have notice of the provisions of this
Agreement. The Insurer shall have the right to rely on the Company's
representations with regard to any definitions, interpretations or Policy
interests as specified under this Agreement.

                                    ARTICLE 9
                           CLAIMS AND REVIEW PROCEDURE

9.1     Claims Procedure. The Executive or Beneficiary ("claimant") who has not
        received benefits under the Agreement that he or she believes should be
        paid shall make a claim for such benefits as follows:

        9.1.1   Initiation - Written Claim. The claimant initiates a claim by
                submitting to the Company a written claim for the benefits.

        9.1.2   Timing of Company Response. The Company shall respond to such
                claimant

<PAGE>

                                                                    EXHIBIT 10.6

                within 90 days after receiving the claim. If the Company
                determines that special circumstances require additional time
                for processing the claim, the Company can extend the response
                period by an additional 90 days by notifying the claimant in
                writing, prior to the end of the initial 90-day period, that an
                additional period is required. The notice of extension must set
                forth the special circumstances and the date by which the
                Company expects to render its decision.

        9.1.3   Notice of Decision. If the Company denies part or all of the
                claim, the Company shall notify the claimant in writing of such
                denial. The Company shall write the notification in a manner
                calculated to be understood by the claimant. The notification
                shall set forth:

                (a)     The specific reasons for the denial;

                (b)     A reference to the specific provisions of the Agreement
                        on which the denial is based;

                (c)     A description of any additional information or material
                        necessary for the claimant to perfect the claim and an
                        explanation of why it is needed;

                (d)     An explanation of the Agreement's review procedures and
                        the time limits applicable to such procedures; and

                (e)     A statement of the claimant's right to bring a civil
                        action under ERISA Section 502(a) following an adverse
                        benefit determination on review.

9.2     Review Procedure. If the Company denies part or all of the claim, the
        claimant shall have the opportunity for a full and fair review by the
        Company of the denial, as follows:

        9.2.1   Initiation - Written Request. To initiate the review, the
                claimant, within 60 days after receiving the Company's notice of
                denial, must file with the Company a written request for review.

        9.2.2   Additional Submissions - Information Access. The claimant shall
                then have the opportunity to submit written comments, documents,
                records and other information relating to the claim. The Company
                shall also provide the claimant, upon request and free of
                charge, reasonable access to, and copies of, all documents,
                records and other information relevant (as defined in applicable
                ERISA regulations) to the claimant's claim for benefits.

        9.2.3   Considerations on Review. In considering the review, the Company
                shall take into account all materials and information the
                claimant submits relating to the claim, without regard to
                whether such information was submitted or considered in the
                initial benefit determination.

        9.2.4   Timing of Company's Response. The Company shall respond in
                writing to such claimant within 60 days after receiving the
                request for review. If the Company determines that special
                circumstances require additional time for processing the claim,
                the Company can extend the response period by an additional 60
                days by notifying the claimant in writing, prior to the end of
                the initial 60-day period, that an additional period is
                required. The notice of extension must set forth the special
                circumstances and the date by which the Company expects to
                render its decision.

<PAGE>

                                                                    EXHIBIT 10.6

        9.2.5   Notice of Decision. The Company shall notify the claimant in
                writing of its decision on review. The Company shall write the
                notification in a manner calculated to be understood by the
                claimant. The notification shall set forth:

                (a)     The specific reasons for the denial;

                (b)     A reference to the specific provisions of the Agreement
                        on which the denial is based;

                (c)     A statement that the claimant is entitled to receive,
                        upon request and free of charge, reasonable access to,
                        and copies of, all documents, records and other
                        information relevant (as defined in applicable ERISA
                        regulations) to the claimant's claim for benefits; and

                (d)     A statement of the claimant's right to bring a civil
                        action under ERISA Section 502(a).

                                   ARTICLE 10
                           AMENDMENTS AND TERMINATION

10.1    Non-Vested Insurance Benefit. Unless the Executive has a Vested
        Insurance Benefit pursuant to Section 3.1, the Company may amend or
        terminate this Agreement at any time prior to the Executive's death.
        Such amendment or termination shall be by written notice to the
        Executive. In the event the Company decides to maintain the Policy after
        termination of the Agreement--subject to the provisions of Article 4 of
        this Agreement--the Company shall be the direct beneficiary of the
        entire death proceeds of the Policy.

10.2    Vested Insurance Benefit. If the Executive has a Vested Insurance
        Benefit, the Company may amend or terminate the Agreement only if: (i)
        continuation of the Agreement would cause significant financial harm to
        the Company, (ii) the Executive agrees to such action, or (iii) the
        Company's banking regulator(s) issues a written directive to amend or
        terminate the Agreement.

                                   ARTICLE 11
                                 ADMINISTRATION

11.1    Plan Administrator Duties. This Agreement shall be administered by a
        Plan Administrator which shall consist of the Board, or such committee
        or persons as the Board may choose. The Plan Administrator shall also
        have the discretion and authority to (i) make, amend, interpret and
        enforce all appropriate rules and regulations for the administration of
        this Agreement and (ii) decide or resolve any and all questions
        including interpretations of this Agreement, as may arise in connection
        with this Agreement.

11.2    Agents. In the administration of this Agreement, the Plan Administrator
        may employ agents and delegate to them such administrative duties as it
        sees fit, (including acting through a duly appointed representative),
        and may from time to time consult with counsel who may be counsel to the
        Company.

11.3    Binding Effect of Decisions. The decision or action of the Plan
        Administrator with respect to any question arising out of or in
        connection with the administration, interpretation and application of
        this Agreement and the rules and regulations

<PAGE>

                                                                    EXHIBIT 10.6

        promulgated hereunder shall be final and conclusive and binding upon all
        persons having any interest in this Agreement.

11.4    Indemnity of Plan Administrator. The Company shall indemnify and hold
        harmless the members of the Plan Administrator against any and all
        claims, losses, damages, expenses or liabilities arising from any action
        or failure to act with respect to this Agreement, except in the case of
        willful misconduct by the Plan Administrator or any of its members.

11.5    Information. To enable the Plan Administrator to perform its functions,
        the Company shall supply full and timely information to the Plan
        Administrator on all matters relating to the Base Salary of the
        Executive, the date and circumstances of the retirement, Disability,
        death or Separation from Service of the Executive, and such other
        pertinent information as the Plan Administrator may reasonably require.

                                   ARTICLE 12
                                  MISCELLANEOUS

12.1    Binding Effect. This Agreement shall bind the Executive and the Company,
        their beneficiaries, survivors, executors, administrators and
        transferees and any Beneficiary.

12.2    No Guarantee of Employment. This Agreement is not a contract for
        employment. It does not give the Executive the right to remain as an
        employee of the Company, nor does it interfere with the Company's right
        to discharge the Executive. It also does not require the Executive to
        remain an employee nor interfere with the Executive's right to separate
        from service at any time.

12.3    Tax Withholding. The Company shall withhold any taxes that are required
        to be withheld, under Section 409A of the Code and regulations
        thereunder, from the benefits provided under this Agreement. The
        Executive acknowledges that the Company's sole liability regarding taxes
        is to forward any amounts withheld to the appropriate taxing
        authority(ies).

12.4    Applicable Law. The Agreement and all rights hereunder shall be governed
        by the laws of the State of Illinois, except to the extent preempted by
        the laws of the United States of America.

12.5    Reorganization. The Company shall not merge or consolidate into or with
        another bank, or reorganize, or sell substantially all of its assets to
        another bank, firm, or person unless such succeeding or continuing bank,
        firm, or person agrees to assume and discharge the obligations of the
        Company under this Agreement. Upon the occurrence of such event, the
        term "Company" as used in this Agreement shall be deemed to refer to the
        successor or survivor bank.


12.6    Notice. Any notice or filing required or permitted to be given to the
        Company under this Agreement shall be sufficient if in writing and
        hand-delivered, or sent by registered or certified mail, to the address
        below:

<PAGE>

                                                                    EXHIBIT 10.6

                       West Pointe Bank And Trust Company
              ----------------------------------------------------
                              5701 West Main Street
              ----------------------------------------------------
                           Belleville, Illinois 62226
              ----------------------------------------------------

        Such notice shall be deemed given as of the date of delivery or, if
        delivery is made by mail, as of the date shown on the postmark or the
        receipt for registration or certification.


        Any notice or filing required or permitted to be given to the Executive
        under this Agreement shall be sufficient if in writing and
        hand-delivered, or sent by mail, to the last known address of the
        Executive.

12.7    Entire Agreement. This Agreement, along with the Executive's Beneficiary
        Designation Form, constitutes the entire agreement between the Company
        and the Executive as to the subject matter hereof. No rights are granted
        to the Executive under this Agreement other than those specifically set
        forth herein.


        IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date indicated above.

<TABLE>
<CAPTION>
EXECUTIVE:                                           WEST POINTE BANK
                                                     AND TRUST COMPANY

<S>                                                  <C>
/s/ Sharon L. Cleveland                              BY /s/ Bruce A. Bone
-------------------------------------------             ---------------------------------------------
SHARON L. CLEVELAND
                                                     TITLE: EXECUTIVE VICE PRESIDENT & CFO
</TABLE>