The xp setup disk will give the option to delet and create partitions , just boot from cd and read everything so you dont miss it . Its really easy , just hit install xp when it asked , dont do a repair , and then it should get to a sceen that shows ytou the partions on disk and gives some options to delete partion then youll get to a screen that asked to create partition and format useing fat 16 , fat 32 or ntsf file system , your choice there ...