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You can start over, by booting from your XP cd, and deleting all partitions. You may need to go into your bios in order to set the boot priority to cd-rom first.
Then create a new partition/s using the ntfs file system.
Please note. During booting from your XP cd, you will be asked to press any key to boot from cd. Once you have done this, Windows will eventually reboot your system, where once again you will be asked to press any key to boot from cd. DO NOT press any key a second time, otherwise Windows will start the installation all over again from scratch.
Regards Howard :wave: :wave: