Removing Dual Boot Option

I wanted to know if anyone knows how to remove a dual boot and make it only boot to the XP volume. Here is the config right now. C drive has Win2K and G drive has XP Pro. I wanted to remove the C drive completely from the system, which will make current G drive the C drive. If I understand this correctly, the boot file(s) are on the current C drive and the computer will not boot to the current XP volume, which will be the new C drive. I can fix the drive assignments, but don’t know how (or if I even can) correct the bootup after the switch. Does any of this make sense to anyone? I have confused myself trying to describe it!!!