iam pretty sure you would need the reciever end of the 49mhz, since the remtes only transmit.
as for the steering in the wild thing, make sure that function is working in the remote, the red bandit i bought wouldnt steer, turned out the remote wasnt working. if thats not it, its most likeley the board itself, ive bought a few eliminators and bandits-same board, and it seems the steering is the first funtion to go out, you could get a test light or volt meter and see if its doing anything at the servo when you press the turn button, if not then its something in the board, if its getting power than the servo may need taken apart and cleaned or just replace with another out of something else.
ps whered you score another two eliminators at?