LOL... and best of luck with that.
You could try to unwarp it with the Mesh Warp effect.
Mesh Warp is probably your best bet. Another tool to try to put her back together could be the Liquify effect.
Ask your friend how (s)he did it in the first place. Then work backwards.
But since you've been part of this forum for less than 24 hours, the chances are pretty good you wouldn't understand the techniques necessary for this, AND you've doubtlessly left out crucial bits of information that you're clueless about, any advice we could give right now woud 1) be useless and 2) go right over the top of your head.
Then there's that whole deal of actually learning how to use AE.
So I agree with Bogesian -- quit tilting at windmills and reshoot.