Are you sure? Microsoft says that the older OS has to be installed first.
(It's not that I don't trust you. It's just that, when the data on my harddrive is on the line, I need an answer that's a little more substantial.)
Also, does the beginning of a Windows Me partition need be in the first 2 GB of a hard drive like for other OSs. (Does XP not need to be in the first 2 GB; so, if I move it out, will it still work?)