Well, glad I am not the only one. I installed from the DVD, picked the proper
partition (2) during setup and it trumped the drive letters and my partitions
look identical to the original poster. When in XP, partition 1 is C, when in
Vista, partition 2 is C.
The reason this is a problem, and could be of concern, is that for someone
like me, who regularly runs a dual boot, it can hose your original OS
programs when you go to install programs on the new OS. For example, as soon
as I got Vista running, I installed MS Office. It wanted to install it on
c:\program files\etc.. Sine XP is (so I thought) on C, I said, no, put it on
the D drive. Little did I know that it was going to overwrite MS Office on my
XP build since while in Vista, my XP build is D. It wasn't until after the
install that I realized it trumped my drive letters. I feel this is probably
a bug the MS needs to work out.