Back again... I'm having difficulty referencing a different node in my XSLT. I have a page that should display a list of news items, in which the list is generated from a number of files under a different parent node. For example, the hierarchy is:

root
  -> News
     -> NewsItem List
  -> NewsItems
     -> NewsItem#1
     -> NewsItem#2
     :
     :

Using this XSLT, nothing happens....

<?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" exclude-result-prefixes="msxml umbraco.library">
<xsl:output encoding="utf-8" indent="yes" method="xml" omit-xml-declaration="yes" />
<xsl:param name="currentPage"/>
<xsl:template match="/">
 <xsl:variable name="parentNode" select="$currentPage/ancestor-or-self::node[@alias = 'Site_Newsletters']"/>
 <ul>
  <xsl:apply-templates select="$parentNode/node[string(data[@alias='umbracoNaviHide']) != '1']">
   <xsl:sort select="@nodeName" data-type="text" order="descending" />
  </xsl:apply-templates>
 </ul>
</xsl:template>
<xsl:template match="node">
 <li>
  <a href="{umbraco.library:NiceUrl(@id)}">
  <!-- check if the node has the 'linkText' set, otherwise fallback on the 'nodeName' -->
  <xsl:choose>
   <xsl:when test="string-length(data[@alias='linkText']) &gt; 0">
    <xsl:value-of select="data[@alias='linkText']" />
   </xsl:when>
   <xsl:otherwise>
    <xsl:value-of select="@nodeName" />
   </xsl:otherwise>
  </xsl:choose>
  </a>
  <!-- check if the node has any children (that are not hidden from nav) -->
  <xsl:if test="count(node[string(data[@alias='umbracoNaviHide']) != '1']) &gt; 0">
   <ul>
   <!-- apply the templates for the sub-child nodes -->
   <xsl:apply-templates select="node[string(data[@alias='umbracoNaviHide']) != '1']">
    <xsl:sort select="@nodeName" data-type="text" order="ascending" />
   </xsl:apply-templates>
   </ul>
  </xsl:if>
 </li>
</xsl:template>
</xsl:stylesheet>

Any clues....?