Yep, got another problem, this time it's with the Steam folder itself. I don't seem to have any rights to any of the Folders or Files in my Steam folder !
If I try to make a new folder, delete something, copy or move something, it tells me "access denied" and "make sure disk is not full write protected and that the file is not currently in use"
But I am pretty sure Steam or any Source games are not running, I can't even paste maps in the maps folders !
Please help !