I would boot from the WINXP cd and format from there. You will get options like repair and stuff just skip the repair part until you see the partitions on the bottom You can delete those partition and create a new partion it will say RAW then click on that partition and it will ask you do you want to format NTSF<----eek I forgot or FAT32 Choice the NTSF and format once it has completed formatting it will automatically start installing WINXP
Sorry my brain is dead this eveing cant even think start been working three weeks straight finally getting a few days after working thursday night shift No help short staffed WHICH!! SUXS!!

But look at the bright side PAYCHECK OOOO YEAH!!!