I don't know if you get this far, but do not try to the saved name, but instead Browse to your Documents folder, and choose a new name.
This DEP thing may apply:
http://support.microsoft.com/kb/942485 Section 1 will not apply, but 2 or 3 may.
Also consider opening Money by right-clicking the launch icon, and choosing RunAsAdministrator. Then File->RestoreBackup.