Installed MS Office Enterprise 2007 (708mb) on my PC, thinking it would overwrite my current application, Microsoft Office XP Professional with FrongPage (468mg) but that didn't happen. I still see the MS Office XP in the Uninstall or Change a program feature of Windows Vista. I want to deleteMS Office XP but I'm concerned my actions would cause MS Office Enterprise 2007 to no longer function. What should I do?