Kampfwagen,
The Esky 6-channel heli radio has mixing built into the functionality which means that the CCPM on the right stick (mode 2) will move three servos (pitch, aileron and elevator) the left stick will be throttle and rudder. And also when you increase the left stick for throttle it will move the swash plate servos accordingly either positive or negative. Might I ask how you have the rx connected to the tank?
DT