FOP code runs standalone, but not in a Servlet

[Mike Kellstrand <mi...@rapix.com>]

I have Java FOP (XSLT-FO PDF converter) code that runs great from the 
command line if I put the fop, batik, avalon, and xalan jars 
in the JAVA_HOME\jre\lib\ext dir.

If I put this code in a servlet under Tomcat 4.1.24, I get transform errors.

I have tried putting the FOP jars in various Tomcat lib dirs,
in webapps with the servlet, etc.  Everywhere I move these jars
I get different amusing transform exceptions, but it doesn't run.

1)  Where do the jars need to go?
2)  Are there any parser jars that come with Tomcat that need to get removed.
I tried removing the 2 jars that are in /common/endorsed, but that didn't help.

This is driving me nuts!

Many thanks!

Mike