Javahelp 2.0 issues

I had to write some "help" file using Javahelp 2.0.
I used a DOCBOOK source and XSLT to generate the HTML files needed by Javahelp.
The output was not so nice. So I decided to attach a stylesheet to it.
Bad idea placing the <link> tag and the css inside the jar made Javahelp crash.
Placing the css inside a <style> tag yelded to a blank output.

Any ideas how to accomplish that ?

Bonus:
Aqua LNF from Birosoft crashes horribly when used with JDK 1.5.0