if you have two hard drives it shoudl be ok, but liek it says, XP home doesn tlike dual boot.
to do it withough 3rd party help, Install win2000 first on to the first hard drive.
Then install XP on the second hard drive. When it boots it will ask you want OS you want to boot to.
if you try to install Win2000 second it will stop and tell you there is a newer OS installed and it will end.
Life doesn\'t always go how you want it, but it sure goes the way that you make it....