If your sata drivers are in a CD, copy those drivers to a floppy. When you install XP, pres F6 and it will ask you to install sata controllers. Insert your floppy with the sata drivers in it and install em. Then XP wud proceed to install.
p.s: Disable your IDE drive[BIOS,options,disable ide hdd], if you want to install XP on sata. By default if you have sata and IDE, XP will install only in IDE