Wharris

Hi ive been running xp (on my C: drive) on my pc for a while. but today i decided to install vista on a seperate partition (F: drive) as a seperate os but now ive done it Vista has renames my F: drive as C: drive and i cant access any of my programs i installed on various other drives when i was on xp. also i dont get teh option to choose which os i wanto use when i boot and booting itself takes a while longe, though i did expect this with vista. can anyone help thanks very much