You should use a Windows XP disk...
Lets start over,
Set the boot order in your BIOS to boot from CD-ROM first, then place the windows XP cd into your drive and start your computer.
It should ask you to "Press any key to boot from CD" so press a key at this stage.
It should then boot into a setup menu for Windows XP where you can create / delete your partitions. My recommendation to you is to delete your partition and create a new one, then format it in NTFS mode. Once it has formatted it will start to install windows.
A step by step guide can be found here:
http://www.windowsreinstall.com/winx...whdd/index.htm