I've just tried to update the drivers to the latest Catalyst Mobility 6.6 and it all went well. Because i've seen that there were some problems, this was what i did:
1) downloaded the utility that downloads the drivers from here
2) unpacked the drivers to a folder and canceled the instalation.
3) manually updated the graphic card driver (even without a proper uninstall of the previous 18.104.22.168a DNA drivers...
and that's it... at least it works... maybe it lacks the rest of the components as the ati control panel, but ill try to do a full install after this one!
full install done and i now have the Catalyst Control Center and The Catalyst 6.6 Drivers working fine, it just messed the resolutions on the first boot, but now it is ok with 1680x1050... I will do some gaming tests tomorrow but this Catalyst Control sure is high tech