On this picture, the receiver is mounted to the Axe upside down. Mine has the plugs towards the front of the heli.

If you look really close, you will see they are labeled 1 through 6 from top to bottom. (not in the photo, but looking at your receiver) To hook up your servos and ESC:

Slot 1- Aileron- Goes to the servo on the heli's right
Slot 2- Elevator- Goes to the servo in front
slot 3- Throttle- Goes to the ESC or 3-1 board
slot 4- rudder- Goes to the tail or the orange wire going to the 3-1
slot 5- Gear- or gyro- unused in the Axe radio
slot 6- flaps- Goes to the servo on the heli's left.

Slot 5 and 6 might have different names for Heli radios, but the idea is the same.

Hope this helps, don't forget to check the direction, or movement of your servos and reverse them as necessary. I hear some Hitec servos move in opposite directions as the OEM Axe servos.