DOCBOOK: xsl support for fo

hi there,

I'm sorry if this fits more into the apps list, I'm not sure. When I 
tried apache's 'fop' tool to generate pdf from docbook (transformed with
the fo stylesheets), I got almost unusable results.

What is the actual status of the fo stylesheets ? Is it written with 
specific fo processors (and their limitations) in mind ? What fo tools 
do exist, are used by people, especially Open Source ones ?

Thanks,
		Stefan