Unfortunately, I think it's going to be really hard to be able to fix your current metal frame. The frame is really thin there around the battery, so there's not much area to work with to glue or otherwise attach together. If you do want to replace the frame, the good news is the part's pretty cheap. There's two different versions, one for the [product|183014|800 MHz/1 GHz] and another for the [product|183064|1.2 GHz]. The bad news is that installing a replacement frame is quite a chore. The closest guide to installing the frame is this [guide|173|logic board install guide]. However, at the end of the guide, you'll still be left with a few other parts that you'll need to transfer to the new frame.