Did anyone manage to get a wheel mouse working with a server from xsrc/xfree?

It worked for me on an xfree/xc based server and I know 

 http://www.netbsd.org/Documentation/x/#wheel-mouse

and

 http://www-sop.inria.fr/koala/colas/mouse-wheel-scroll/

but I did not get it to work for XFree 4.1. ZAxisMapping is not accepted and
the XFree documentation didn't point out anything - or I missed it.


Martin