RE: Heli assembly
try posting some pictures of the servo locations and the receiver. depending on the receiver type we can probably make some good guesses. For instance on a futaba receiver, ch3 is the throttle connection so the esc should plug in there, ch4 is for the gyro (rudder servo should be pluged into gyro)... etc.
take some pics if you can and post them, we'll try to help you get it up.