No Indy, actually It won't . Win ME was kinda a Bastard child of Windows, a kind of Breach between win98 and winXP. although XP still was based on the 2000 kernal, win ME was Closer to 98, with just a few exceptions IE Backup capabilities.
You can always try It, But If there's any chance to get XP home for her system, It would be alot easier now and in the Future. Sorry to give you that bad news Buddy.
Stephen