I just bought a Futaba 14sga TX what do they mean by one Aileron or two Aileron I have one Aileron on each wing does that mean two

They mean are you using one servo for both ailerons or a seperate servo for each aileron. If 2 then you plug one in the aileron channel and the other in an aux channel and set up the radio for 2 servos. AMkes it easier to adjust the ailerons for things like differential, trim etc.