Take a look at one of the teardowns (I used the ZDnet as my guide) for their explanation of what goes where.
As long as all of the tabs are still there, you should be able to get the cover to fit back in.
might be a good photo in the set to start with.
Couldn't find a screw driver small enough for the tiny screws but I did find a flat head screw driver that I used to push the tabs back in. Thanks!