Boot Camp & Vista Upgrade.

It is going around the web that you can use Vista Premium Upgrade and do a completely fresh install. They say that you can do the install and don't input your serial # the first time through. Once Windows loads while in windows you do an upgrade and that is when you put in the serial #.

Does anyone know if you can do this while using BootCamp?
Fresh Install not just an upgrade.

My wife has to have windows for her Mortgage business and I have lost my Windows XP Pro disc. Based on what I have read and found Vista Premium upgrade is the same price as XP Pro OEM.

Just need to know if you can do the above with BootCamp?

There is a thread going and a couple of people have successfully installed Vista using bootcamp.

http://www.mac-forums.com/forums/showthread.php?t=53613

thanks