hi Prozac,
you could use some tape (of any sort) to keep the bend in the flaps after you bend them. it should hold it well enough during flight.

as for the rudder, you could try gently bending the areas of foam where the rubber bands go into the verticle stabilizer (not the rudder). this might straighten it back out well enough to fix the turning issue.

the rudder on these planes deflect almost 90 degrees, which is far more than it needs. if you hold left or right too long it might dive into a spiral, so like most other non proportional rudder planes (like the micro flyer, rookie, ect), its best to just blip the left and right stick, rather than pushing and holding it. its also easy to get out of control if you're flying at full throttle. with it being tail heavy, it doesnt take much for it to nose straight up and stall, and this plane doesnt recover from a stall very easily. i found that 1/4-1/2 throttle works pleanty well for simple cruising around.

nick