make sure the jumpers on the IDE harddrive are set at Master,
is that where the operating system is installed?
Have you installed all the motherboard drivers from the cd you got with it ?
the SATA harddrive driver system does not require any jumpers.
sometimes if you have not done an XP reinstallation the SATA drivers will not be installed, There should have been a floppy with the Sata drivers in the motherboard pack,
you may have to do a repair installation to put the sata drivers into xp, early in the install it will stop and ask if you want to install sccsi or other devices, this is when the sata drivers floppy should be put in the floppy drive the press f6 and the drivers will be installed.
other problems can happen if you put the SATA Drive connection into the SATA Raid connection on the motherboard. instead of the SATA