<?xml version="1.0"?><?xml-stylesheet type="text/xsl" href="../4_X02.xsl"?><ownershipDocument>    <schemaVersion>X0202</schemaVersion>    <documentType>4/A</documentType>    <periodOfReport>2008-03-07</periodOfReport>    <dateOfOriginalSubmission>2008-03-07</dateOfOriginalSubmission>    <notSubjectToSection16>0</notSubjectToSection16>    <issuer>        <issuerCik>0001325281</issuerCik>        <issuerName>KAPSTONE PAPER &amp; PACKAGING CORP</issuerName>        <issuerTradingSymbol>KPPC</issuerTradingSymbol>    </issuer>    <reportingOwner>        <reportingOwnerId>            <rptOwnerCik>0001098385</rptOwnerCik>            <rptOwnerName>FELDMAN ROGER</rptOwnerName>        </reportingOwnerId>        <reportingOwnerAddress>            <rptOwnerStreet1>C/O WEST CREEK CAPITAL</rptOwnerStreet1>            <rptOwnerStreet2>1919 PENNSYLVANIA AVE., N.W. STE. 725</rptOwnerStreet2>            <rptOwnerCity>WASHINGTON</rptOwnerCity>            <rptOwnerState>DC</rptOwnerState>            <rptOwnerZipCode>20006</rptOwnerZipCode>            <rptOwnerStateDescription></rptOwnerStateDescription>        </reportingOwnerAddress>        <reportingOwnerRelationship>            <isDirector>0</isDirector>            <isOfficer>0</isOfficer>            <isTenPercentOwner>1</isTenPercentOwner>            <isOther>0</isOther>            <officerTitle></officerTitle>            <otherText></otherText>        </reportingOwnerRelationship>    </reportingOwner>    <reportingOwner>        <reportingOwnerId>            <rptOwnerCik>0001098386</rptOwnerCik>            <rptOwnerName>HANERFELD HARVEY</rptOwnerName>        </reportingOwnerId>        <reportingOwnerAddress>            <rptOwnerStreet1>C/O WEST CREEK CAPITAL</rptOwnerStreet1>            <rptOwnerStreet2>1919 PENNSYLVANIA AVE.STE. 725</rptOwnerStreet2>            <rptOwnerCity>WASHINGTON</rptOwnerCity>            <rptOwnerState>DC</rptOwnerState>            <rptOwnerZipCode>20006</rptOwnerZipCode>            <rptOwnerStateDescription></rptOwnerStateDescription>        </reportingOwnerAddress>        <reportingOwnerRelationship>            <isDirector>0</isDirector>            <isOfficer>0</isOfficer>            <isTenPercentOwner>1</isTenPercentOwner>            <isOther>0</isOther>            <officerTitle></officerTitle>            <otherText></otherText>        </reportingOwnerRelationship>    </reportingOwner>    <nonDerivativeTable>        <nonDerivativeTransaction>            <securityTitle>                <value>Common Stock</value>            </securityTitle>            <transactionDate>                <value>2008-03-07</value>            </transactionDate>            <deemedExecutionDate>                <value>2008-03-07</value>            </deemedExecutionDate>            <transactionCoding>                <transactionFormType>4</transactionFormType>                <transactionCode>P</transactionCode>                <equitySwapInvolved>0</equitySwapInvolved>            </transactionCoding>            <transactionTimeliness>                <value></value>            </transactionTimeliness>            <transactionAmounts>                <transactionShares>                    <value>1000</value>                </transactionShares>                <transactionPricePerShare>                    <value>6.23</value>                </transactionPricePerShare>                <transactionAcquiredDisposedCode>                    <value>A</value>                </transactionAcquiredDisposedCode>            </transactionAmounts>            <postTransactionAmounts>                <sharesOwnedFollowingTransaction>                    <value>2676858</value>                    <footnoteId id="F1"/>                </sharesOwnedFollowingTransaction>            </postTransactionAmounts>            <ownershipNature>                <directOrIndirectOwnership>                    <value>I</value>                </directOrIndirectOwnership>                <natureOfOwnership>                    <value>See Note</value>                    <footnoteId id="F2"/>                </natureOfOwnership>            </ownershipNature>        </nonDerivativeTransaction>        <nonDerivativeTransaction>            <securityTitle>                <value>Common Stock</value>            </securityTitle>            <transactionDate>                <value>2008-03-11</value>            </transactionDate>            <deemedExecutionDate>                <value>2008-03-11</value>            </deemedExecutionDate>            <transactionCoding>                <transactionFormType>4</transactionFormType>                <transactionCode>P</transactionCode>                <equitySwapInvolved>0</equitySwapInvolved>            </transactionCoding>            <transactionTimeliness>                <value></value>            </transactionTimeliness>            <transactionAmounts>                <transactionShares>                    <value>15000</value>                </transactionShares>                <transactionPricePerShare>                    <value>6.2841</value>                </transactionPricePerShare>                <transactionAcquiredDisposedCode>                    <value>A</value>                </transactionAcquiredDisposedCode>            </transactionAmounts>            <postTransactionAmounts>                <sharesOwnedFollowingTransaction>                    <value>2691858</value>                    <footnoteId id="F1"/>                </sharesOwnedFollowingTransaction>            </postTransactionAmounts>            <ownershipNature>                <directOrIndirectOwnership>                    <value>I</value>                </directOrIndirectOwnership>                <natureOfOwnership>                    <value>See Note</value>                    <footnoteId id="F2"/>                </natureOfOwnership>            </ownershipNature>        </nonDerivativeTransaction>    </nonDerivativeTable>    <derivativeTable>        <derivativeTransaction>            <securityTitle>                <value>Common Stock Warrants (Right to Buy)</value>            </securityTitle>            <conversionOrExercisePrice>                <value>5.00</value>            </conversionOrExercisePrice>            <transactionDate>                <value>2008-03-11</value>            </transactionDate>            <deemedExecutionDate>                <value>2008-03-11</value>            </deemedExecutionDate>            <transactionCoding>                <transactionFormType>4</transactionFormType>                <transactionCode>P</transactionCode>                <equitySwapInvolved>0</equitySwapInvolved>            </transactionCoding>            <transactionTimeliness>                <value></value>            </transactionTimeliness>            <transactionAmounts>                <transactionShares>                    <value>3800</value>                </transactionShares>                <transactionPricePerShare>                    <value>1.45</value>                </transactionPricePerShare>                <transactionAcquiredDisposedCode>                    <value>A</value>                </transactionAcquiredDisposedCode>            </transactionAmounts>            <exerciseDate>                <value>2007-01-01</value>            </exerciseDate>            <expirationDate>                <value>2009-08-15</value>            </expirationDate>            <underlyingSecurity>                <underlyingSecurityTitle>                    <value>Common Stock</value>                </underlyingSecurityTitle>                <underlyingSecurityShares>                    <value>3800</value>                </underlyingSecurityShares>            </underlyingSecurity>            <postTransactionAmounts>                <sharesOwnedFollowingTransaction>                    <value>717750</value>                    <footnoteId id="F3"/>                </sharesOwnedFollowingTransaction>            </postTransactionAmounts>            <ownershipNature>                <directOrIndirectOwnership>                    <value>I</value>                </directOrIndirectOwnership>                <natureOfOwnership>                    <value>See Note</value>                    <footnoteId id="F2"/>                </natureOfOwnership>            </ownershipNature>        </derivativeTransaction>    </derivativeTable>    <footnotes>        <footnote id="F1">Included are 51,000 shares of Common Stock that are held as a component of 51,000 units and are being reported here per Instruction 4(c)(iv).</footnote>        <footnote id="F2">Roger Feldman and Harvey Hanerfeld (the &quot;Reporting Persons&quot;) are the sole managing members of West Creek Capital, LLC, a Delaware limited liability company (formerly West Creek Capital, L.P., a Delaware limited partnership) that is the investment adviser to (i) West Creek Partners Fund L.P., a Delaware limited partnership (&quot;Partners Fund&quot;), (ii) WC Select L.P., a Delaware limited partnership (&quot;Select&quot;), (iii) Cumberland Investment Partners, L.L.C., a Delaware limited liability company (&quot;Cumberland&quot;), and (iv) certain private accounts (the &quot;Accounts&quot;).  These securities are held directly by Partners Fund, Select, Cumberland, or the Accounts for the benefit of their respective partners, members or owners.  The Reporting Persons disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein.</footnote>        <footnote id="F3">Included are 102,000 Common Stock Warrants that are held as a component of 51,000 units and are being reported here per Instruction 4(c)(iv)</footnote>    </footnotes>    <remarks>March 11, 2008 filing being amended to include group member, Harvey Hanerfeld of West Creek Capital.</remarks>    <ownerSignature>        <signatureName>Roger Feldman</signatureName>        <signatureDate>2008-03-11</signatureDate>    </ownerSignature>    <ownerSignature>        <signatureName>Harvey Hanerfeld</signatureName>        <signatureDate>2008-03-11</signatureDate>    </ownerSignature></ownershipDocument>
