when i create an order and submit it everyting gets inserted into the db as expected except the UmbracoMemberId into uCommerce_Customer table. i'm pretty sure i've removed something i should't have. i've also lost the original source code which doesn't help. i'm using 1.1.1.0. please help

here's my submitBasket.xslt

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [
  <!ENTITY nbsp "&#x00A0;">
]>
<xsl:stylesheet
 version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:msxml="urn:schemas-microsoft-com:xslt"
 xmlns:umbraco.library="urn:umbraco.library"
 xmlns:CommerceLibrary="urn:CommerceLibrary"
 exclude-result-prefixes="msxml umbraco.library CommerceLibrary">
  <xsl:output method="xml" omit-xml-declaration="yes"/>
  <xsl:param name="currentPage"/>
  <xsl:template match="/">
    <SCRIPT language="JavaScript">
      <![CDATA[            
            
            function redirectShoppingCart()
            {
                var val="../bp-shop.aspx";   
                location.href =val;
            }    
             
            ]]>
    </SCRIPT>
    <xsl:variable name="isPostback" select="umbraco.library:RequestForm('submitBasket') "></xsl:variable>
    <xsl:if test="string-length($isPostback) > 0">
      <xsl:variable name="result" select="CommerceLibrary:ExecuteBasketPipeline()"/>

      <xsl:variable name="addressResult" select="CommerceLibrary:Set('Billing')"></xsl:variable>

      <xsl:variable name="result1" select="CommerceLibrary:Checkout()"></xsl:variable>

      <div id="continue_container">
        <div class="continue_container_r">
          <div class="btn_AddToCart">
            <input  type="submit" value="Continue" id="btnContinue" class="btn_UpdateCart"
                    onclick="redirectShoppingCart();"></input>
          </div>
        </div>
        <div class="continue_container_l">
          <h3> Your order has been placed successfully</h3>
        </div>
      </div>

    </xsl:if>
  </xsl:template>
</xsl:stylesheet>