Y'know, I can't remember how you do it. This is probably because it was pretty straightforward so no details have stuck in my head. Well, apart from the xp installation being painfully slow, unlike that of Ubuntu
.
IIRC, you install VB, set up the VM, pop the xp install CD in the drive, do something to tell VB to use the CD drive and away it goes. I'm not on my Ubuntu box at the moment (Puppy Linux on my old IBM Thinkpad in the kitchen
) but I'll see if I have any documentation when I'm back on.