[Warren]

On your first picture is obviously the way both sides should be. The other side needs taken off and put back just like the first picture. It looks like the 2nd side was warped from the bottom getting pushed in to far. That is one reason why I thought you ight want to take the bottom off completely and straighten it out all by itself , then when you put it back in you can get it in the right position on both sides. If you dont see any nails/staples holding it in then it must be glued somehow. I think I would try prying apart very slowly and carefully until you can tell for sure how it is connected together. Is there a channel that the bottom is sliding into? I cant tell.