I have a hitec laser 4 transmiter and a hfs-04mg receiver and i dont know how to conect it with the servos . I want to use ailerons with two servos, elevator and throtle. can anyone tell me how to conect everything? maybe using a Y harness?.

A Y-harness is the way to go. On a computer radio you can program seperate channels for each aileron, on the Laser 4 you've only got one channel for ailerons. With a Y-harnesss, both servos will rotate in the same direction, so make sure they're placed in the wings to give opposite throws to each aileron.

thanks, will do that