ekylo: If you are using a laptop I would use Unicorn’s recommendations. However if you PC is a tower, I would use the hard drive with the B-games as a secondary hard drive and use a new hard drive as the primary. That way you could use the B-games installation software. Then you could determine what games will work with the XP. After that, transfer all your saved data to the primary hard drive. Reformat the secondary hard drive, and transfer those games that don’t work with XP, to the secondary hard drive or burn CD’s to save that data.
I hope things will work out for you and your games.