If anyone is interested in how to dual boot XP/Vista there is an easy to follow guide is available here:
How to dual boot Vista and XP (with Vista installed first) -- the step-by-step guide
Alternatively
How to dual boot Vista and XP (with XP installed first) -- the step-by-step guide
Another alternative is to use the method in my earlier post:
Dual Boot the Steve Jones Method
Creating a Dual Boot Vista/XP System
Moderator: Ken Berry