I'm porting a site over from an older version of Umbraco and attempting to update it to the most recent version of XSLT schema. The macro i'm trying to rewrite provides prev/next functionality for my news section. Here is the XSLT file:

[CODE]

<?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:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets"
  exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets ">


<xsl:output method="xml" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>

<xsl:template match="/">
  <xsl:variable name="picFile" select="count($currentPage/preceding-sibling::node)"/>
  <xsl:copy-of select="$picFile" />
  
    <xsl:if test="count($currentPage/preceding-sibling::node) != 0">
      <strong>Previous Article:</strong> &nbsp;
      <a href="{umbraco.library:NiceUrl($currentPage/preceding-sibling::node[1]/@id)}">
        <xsl:value-of select="$currentPage/preceding-sibling::node[1]/data ['entryTitle']"/>
      </a>
      <br />
    </xsl:if>
    <xsl:if test="count($currentPage/following-sibling::node) != 0">
      <strong>Next Article:</strong> &nbsp;
      <a href="{umbraco.library:NiceUrl($currentPage/following-sibling::node[1]/@id)}">
        <xsl:value-of select="$currentPage/following-sibling::node[1]/data ['entryTitle']"/>
      </a>
    </xsl:if>
  </xsl:template>
</xsl:stylesheet>

[/CODE]

The problem is count($currentPage/preceding-sibling::node) always returns 0 when there are siblings on either side of the current node. This markup worked in 4.0 so i'm not sure if i'm missing some kind of attribute or what to match the new schema format.

Any help appreciated. Thanks.