lost in code migration

Sorry if this question has already been debated here but there are some aspects of mod devellopment for ut2004 that I don't quite understand and I never saw them fully explained.

I had a little gametype in devellopment for ut2003 and it was working well.It was using an int file to appear in the gametype list.
Now I'm trying to port it to ut2004 and after correcting the code incompatibilities and recompiling succesfully ,it doesn't appear anymore in the gametype list.
I know this page:
http://unreal.epicgames.com/ut2004/tutorials/modsupport.htm
Does that mean that we have to use this architecture for every mod or gametype that we create?It appears a little heavy for smaller scale projects.

Also could anyone point me to any information about UCL files and CACHE (I see the word cache used many times about ut2004 scripting but I don't understand what it is and what it does)
Thanks.

Thanks,but it doesn't work.
My gametype doesn't appear and my weapon's baseclass does appear in the setting although I don't want that grrrr

oh well I had forgotten the maps.
It works now...well it does show up....
Thanks.

Anybody know about the 'cache' reference?
Also how to use a custom gamerules tab?

thanks evolution