Kwan, all you have to do is go into the joystick selection and click keyboard throttle.
Dago, I screwed up on that build.  I just put a fixed one up with the same name.  I'm afraid you're going to have to redownload it. 

  Sorry for the inconvenience.
------------------
Doug "Pyro" Balmos
HiTech Creations
"If it's stupid but works, it's not stupid."