|It is saying that D because the OS believes that there is some partition before the D: which would be it's C: drive.|
You delete all partitions. Be careful. Some computers have hidden partitions that have your original xp install on them. Then you create a single partition and install xp. After you have xp installed then you look at OEM site for drivers for any hardware not found in xp.
One can slipstream their cd but I suspect that is beyond what you would want to do.
1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.