How do you register it? Also, when I try installing the vista and 7 fix it says "C:\windows\system32\RICHTX32.DEP is not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support." It says the same thing after that, except with richtx32.oca, so I don't know if this has to do with anything, but thought I would say that. But, it still doesn't work after I run the windows 7/vista fix...
EDIT: after running the 7/vista fix as an administrator, it seems to work. The tabctl32 error still comes up, but I can play the game.