You are a life saver, I finally got the dual boot win 7 and XP on two separate drive set-ups working thanks to you and this great post!
And by the way, just a little something I figured out that might help other members while trying to do the same setup,
I was having this problem like many I had read have been experiencing where every time I tried to load XP where you have to press F6 to load the drivers for the HDD I would get error 18 on line 2112 or something like that. Well the solution to that is the floppy disk needs to be freshly formatted and do the long format not the quick and then copy all the drivers on it afterwards and it worked just fine. I tried it a few times with different floppies that I had lying around,