The kit pack definitely works. Do you have any other patches installed, like MUP..?
If you have more than one directory (if you run different mods) did you copy it into the right directory?
Do you normally run the .exe that you are running now?
If you just got the game and it is literally fresh from the CD, try running the .exe you copied to the desktop. The files work, and the .exe is the same as it is in the directory, but there may be some issue that the .exe is not running the files.
These files definitely work, and have been tested. The files just go inside the directory, not inside any folders, just as they are. Try the GP pack and see if that works, or any other file. If it does not load, it might be because you need to run the original exe. I only click on the exe in the directory, if i make a new one.
Try using the desktop .exe, that's all i can think and reply here if it isn't working.[/b]