enter to your program files folder (c:\program files)and look for the Activision or Creative assembly folder select it and cut it then create a new folder somewhere else (say C:\Games) and paste the Activision folder in it
Sorry Lz3, but this is pointless as far as I can see, why do you suggest this? All it will do is cause problems for inexperienced computer users when they wonder why they can't uninstall/install the game.
Just install Rome to C:\Games\ or where ever to begin with.
Cheers