yeah it's really easy with xp...in the setup you can make and format partitions...unless you have a restore disk....then you can just use fdisk on a 98 bootdisk (
www.bootdisk.com) and setup will reformat the c drive as ntfs and you can reformat the others as ntfs when windows is installed if you wish
if you want to do it without reformatting you need a 3rd party program like partition magic