You can attempt to do what I did and extract 'em via the Animation Editor (Load up an animation, seperate all the bones and screenshot it) but obviously:
a) The background's grey gradient, which means careful use of the magic wand
b) Anti-Aliasing and Scaling helps you lose data
c) They'll all be the wrong orientation
Still, managed to give her different hair and didn't look *too* bad, but the originals at least would be handy for basing new characters off