You know you might be hungry when you are greeted by the following error message:

xsltStylePreCompute: unknown xsl:parma
xsltApplyOneTemplate: parma was not compiled


The offending part:

<xsl:template mode="navigation" priority="0.2" match="*[@rdf:resource]"> 
  <xsl:parma name="head" select="false()"/> 
  <div class="navigation"> 
    <xsl:variable name="this-p" select="concat(namespace-uri(),local-name())"/>

To keep this sort of on-topic: There was a workshop in Italy last week, SWAP 2004, Danny Ayers has more.