Alright, I installed Vista Beta 2 Build 5472 on my computer and want to go back to Windows XP (some programs I need do not work on Vista) but instead of a XP disk I have another hard drive in my computer. On XP when it starts up it says "To start system restore press F11" or something like that but on Vista it doesnt say anything and pressing F11 gets me to some boot thing. I remember when I first got Vista I pressed something (when it was booting up) that made a page with "Restore from partion" on it come up and I think thats what I need to do but I cant figure out how to get there again, please help!

I dont even know if its called system restore but what I want to do is a clean install of XP and wipe all of my files