I have it currently installed to my D drive which is my other hard drive and the update it saying its not installed so I have to install it to C?
no, u shouldn't need to. I have the game on d too and the update patch looks for it anyway so thats not your prob. which update btw?
when u look in add/remove programs is it there? does it run ok? r u using a hacked version (god forbid)
I didn't make it!
If you've wiped your hard drive (C:\ with windows) then continued to play the game after a Windows clean install then the registry info for the game won't be there and that's what the patch relies on. Just re-install the game.