Same thing with the tail boom happened to me when I had one of those. They're durable, but once they've taken a critical hit like that, it seems they never fly quite right again. I'd say some epoxy in there and/or two screws should do it. Just make sure it's snapped into place. If it's out of its fixture the tail will hang down from the rest of the plane.
As for another plane: if you want something similar, the aerobird looks like a good choice if you buy the upgraded tail feathers for it. It's basically a 3-channel Firebird.
-Chris