Hmm.. maybe i have not explained this right..
This is all training for my job. First i had to create a dual boot pc, then again using only one partition. They both worked fine.
Now my boss just wants me to find out how to change the root directory if it is every needed. If a client wants a dual boot pc, we won't have all that much control over what they want. So all i need is just a general idea on how to change the root directory if i ever need to. I won't actually be doing it, he just wants me to be able to explain it to him.
So it could be two versions of XP, or any combination of operating systems really (yes i know about the NTFS / FAT incompatibility for a dual boot pc with one partition, but you get what i mean - i hope).