Strange - I posted a reply yesterday, and now it's gone! Darned gremlins!
Looking good Keith, and yes, those are the elevators, for climb and dive. Flaps are for slowing down/landing, and can be used (to an extent) to tighten a turn.
That gap on the top, front of the fuselage might be caused by an internal part not locating fully, but it should fill easily enough.