ORIGINAL: opjose
Well this is the Glow Planes forum.... so it really belongs elsewhere, but here goes.
You are using a brushless motor that has three wires coming from the motor to the ESC.
Reverse any two of those three wires to reverse the direction of the motor.
That's it.
Actually this is the "Beginners" forum and we don't distinguish between Nitro and electric. That being said there are other forums where electric is better spoken.
If you have any "Beginners" questions feel free to bring them up. Electric questions will be better served in one of the sub-forums found here.
http://www.rcuniverse.com/forum/forumid_227/tt.htm
Enjoy.