Not sure why the uninstall/reinstall isn't working, but try this: delete the 'bad' Busch Stadium file or at least rename it something you can remember later in case you need it. Then, do the uninstall/reinstall and the game should replace it with the one you're looking to use. There's probably a simpler answer I'm overlooking, but that's the best I have off the top of what little head I have left right now.
