Grub drive assignments

[David Niemi]

How do the drive assignments work in Grub?

I have 4 hard drives in a computer:
 hda - ntfs data disk
 hdb - ntfs data disk
 sda - FC3, Grub, used LVM default installation with SELinux
 sdb - ntfs, WinXP

During the install initially grub was going to be installed to hda which
I didn't want so I unplugged the 2 drives and installed with the 2 SATA
active.  Because of this sda is hd0 in Grub and sdb is hd1.  Once I
plugged the other 2 drives back in Grub wouldn't boot to WinXP.

At the moment I change the boot priority to sdb in the bios to boot to
WinXP.  This is the pertinent sections of my grub.conf:
*********************************
title Fedora Core (2.6.9-1.667)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00
rhgb quiet
        initrd /initrd-2.6.9-1.667.img
title Other
        rootnoverify (hd1,0)
        chainloader +1
*********************************
I tried some Google searches, man grub, and fought with info grub to no
avail. 

How do I change the drive assignments to get Grub to point to the right
drive to boot WinXP also?

Thanks