When do you only see the "C" drive. so that we determine what you are or have done!

When I boot the XP disk, and say install xp, C is the only disk that come up to install to. D & E do not show.

Are you using
1)sata harddrives
2) RAID configuration
3)IDE configuration
4) combination of both IDE and Raid or IDE and sata drives

I am not sure, when I go to Device Mgr, under Disk Drives it says "SCSI Disk Device.

Ok what you need to have on either a floppy or CD (what ever for your system) is the SCSI controller drivers in an unzipped condition. Reboot to the XP installation disc and shortly after you are prompted to "boot from CD press any key" then you will be prompted again to "install thired party or RAID drivers press F6" you will need to press the F6 key and wait till you are prompted again to load the driver files on the floppy or CD.

After the driver files are installed then you should be able to see the other partitions!

tHANKS FOR THE INFO, WHERE WOULD I FIND THESE DRIVER'S?

You do not say in your posts, what brand of computer / motherboard you have to check their website for the drivers you need.

Mine are on the Asus motherboard cdrom, check your motherboard cdrom and you might have them as well. On the Asus cdrom it has a utility to make the driver disk as well...

I have a Gateway GM5471 Desktop Computer. I went on there website looking for a SCSI Controller Driver, there was so many of them thewre I did not have a clue as to what one I needed.

I could not find any mention of GM5471 at this Gateway link... Gateway Support

gateway does not use the model numbers for their support. You have to use the serial number that is posted somewhere on the computer. usually on a tag stuck on a door or on the outside of the case.