Xrystal -- even though those frames aren't named, it should still be possible to attach movers to them. Unfortunately, my hard drive failed Saturday morning (second time in three months -le sigh), so I can't do much at the moment.
That said, if you can get references to those frames, you can still pass them into the movers... or assign them to a global variable something like this...
Code:
nUI_TopPetBattleFrame = PetBattleFrame.topFrame;
nUI_BottomPetBattleFrame = PetBattleFrame.bottomFrame;
(I haven't looked at the actual Blizz code, so I'm paraphrasing there)
In any event, that would give them a "global" name you can access if you need, as long as you have a reference to the actual frames. Even though they're unnamed, there has to be a reference to them somewhere you can grab. Or work backwards from the buttons... the buttons are likely named and you can get their parent, which should be the "bar" -- etc.