gate ~ # locate html/docbook.xsl
/usr/kde/3.5/share/apps/ksgmltools2/docbook/xsl/html/docbook.xsl
/usr/share/sgml/docbook/xsl-stylesheets-1.70.1/html/docbook.xsl
/usr/share/sgml/docbook/xsl-stylesheets-1.70.1/xhtml/docbook.xsl