This allows you to map all XML files with the given root element to be mapped to the specified stylesheet(s):
AxAddRootProcessor text/xsl /stylesheets/book.xsl book
Namespaces are fully supported via the following syntax:
AxAddRootProcessor text/xsl /stylesheets/homepage.xsl \ {http://myserver.com/NS/homepage} homepage
This syntax was taken from James Clark's "Introduction to Namespaces" article (http://jclark.com/xml/xmlns.htm).