I like the idea of using a separate partition for my home partition. You could
please send me the details of how to do it. (I will go for that when next I am
installing a Linux system ... hopefully soon.) But on my current system, I am
using grub (not grub2) so i think it will be easier to just edit the grub file.

Like Adam mentioned, I have 3 OSes (so its a triple-boot). And I think its the
GRUB file of the most recently installed Ubuntu (in my case Ubuntu Server) that
is controlling the boot sequence. It duely recognizes the Win XP & Ubuntu
Desktop but my question is can I make the GRUB that came with the Ubuntu Desktop
to control the boot sequence?

I want to be able to delete the Ubuntu Server (or wipe its partition) anytime I
dont need it again without fear of losing my GRUB. Is that possible? Or will I
have to use the Live CD to re-install GRUB anytime I do that?