10-23-2009, 05:13 PM
From what I have been reading, you can install it on top of a similar version of Vista. You need to do a clean install from XP though, and I guess if you have Vista Home edition and you want to upgrade to Win 7 Business edition, you'll need a clean install as well.
Don (ezdays) Day
Board administrator and
founder of the CANYON STATE RAILROAD
Board administrator and
founder of the CANYON STATE RAILROAD