I doubt the
XP 2000 system that you are transferring will run well if at all. It will not have all the necessary drivers for your motherboard and hardware. A repair install may fix it. Make sure the other drive is disconnected if you do this - best to work with one drive at a time.
I was told to buy system commander and load it on the xp system. then when it boots up it will ask what os I want to boot into? Thanks sorry about the dual post I didn't know i did that.
It won't be that simple for the reason I quoted above. You will need to reinstall windows 2000 from scratch unless you can get a repair install to work. It's been a long time since I used win2k. Does it even have a repair install option?