You are amazing, thank you very much.
I'm confused anyway.. as I wrote, both mods were installed by CKAN, so I expected everything to be ok. As soon as I told CKAN to install CCK and ModuleManager the problem is solver. Now, about the KIS... I didn't knew it was broken, and I still don't know how... I guess I have never saw it work as intended, so I can't see were is the problem with it. If you say it's broken, I clearly trust you that something isn't right, but... could you be a bit more specific?