This might be a little late but, i hope it helps in the future.
Put win xp cd in drive. Restart. System will say hit any key to bood from cd. Hit Key. Blue screen will pop up what with options to enter setup or go to the recovery console. You will hit R to go to recovery console then follow the instructions. You will most likely press the number 1 then enter to select the drive you want to use. Then it will ask you for your admin password. If you had one use it if not just hit enter. Then type format c: it then will tell you that all data will be deleted are you sure you want to do this. Hit Y then Enter. You are done..Now Formating.
hope this helps.
after the format you will boot from cd again and go to setup. be sure to pick your file type fat32 or ntsf.
Use FAT32 if your hard drive is smaller than 32GB.
Use FAT32 if you want to install more than one OS on your computer.
Use NTFS if your hard drive is larger than 32GB and you are running only one OS on your computer. Use if you want enhanced file security, and if you need better disk compression.
*if your not sure what file system to use keep the one that your computer defaults to during setup.
Remmember the conversion to NTFS is oneway only if you convert your FAT or FAT32 file system to NTFS you cant convert your drive back later unless you want to loose all your data.