i m confused.
which hard drive do you want to install winxp on??
the new(unused) one or the one with the data on it??
if you are gonna install xp on a new hd,its extremly simple.
just pop in the cd and follow the prompts.
opinions vary on how many partitions to use.
i divided mine into three . ten gig apeice.
i formatted the one that the os is installed on to ntfs.
and i formatted the other two to fat32.
if you want to install it on the drive with the data on it, then you d better inquire further,for i know nothing about doing that
hope i steered you in the right direction
brad