I would uninstall SP2 first, run the regular Windows tools and antivirus, uninstall Money (and delete its directory folder) if you aren't using or planning to in the near future, and then try reinstalling SP2. I recently upgraded the desk PC here at the hotel with SP2 and it runs like a champ.
Also double-check your file associations in regards to MS Money. There's a chance that a file or two of yours may have gotten linked to Money inadvertantly. It should be under Folder Options.
Hope this helps,
Wallace