No, I can't help you with anything as far as jumpers goes, you have to work that out yourself when you physically get the drive

I know XP will detect if another XP is installed, I don't know if you can have two XP installs dual-booting with each other on the same machine though (although my guess is it should be possible ) Why not install the 2nd copy after removing the test drive if it works, then you won't need to dual boot in the end at all