I would guess from the pictures that neither has the 'trainer' connector port that would make interfacing relatively easy. Pity, I have some code that I have used to interface with my radio control transmitter that could have helped. If you have access to an oscilloscope then you could try probing around to see if there is any kind of standard signal on either of the boards.
There is more information on the standard signals here: http://www.mp.ttu.ee/risto/rc/electronics/radio/signal.htm. I don't want to discourage you but IMHO this is somthing you may find more satisfying to tackle after gaining a little more experience with Arduino interfacing from your other projects.