Which tomcat-version is used in enhydra and how can I change it?

Hallo,

can someone tell me which version of tomcat enhydra is using inside? It looks 
like some kind of 3.2.x, but I'm not sure.

When running servlets under enhydra5.0 I'd like to use some features of tomcat 
4.1. Did someone now, how I can change the tomcat-version inside enhydra?

Thanks!

Achim
Achim.Wessling@xxxxxx