First off, you don't need gyros.
The gyro setup would be used to stabilize the aircraft, kind of like a discrete AS3X system.
To use it in your plane, you would need up to 3 gyros - one for roll, 1 for pitch, 1 for yaw. If you want to do things like use the ailerons as flaps or spoilers, you'll need one gyro on each of them instead of just one for the axis.
If you use 1 gyro for each axis, then you'll need to Y-out the 4 servos from the single gyro output instead of using the 4-servo wing type in the transmitter.
Flying Giants is probably the best site to ask questions about using gyros in a plane.
Andy