I've also got an X-45, and when I finally got the thing programmed right, it is simply incredible.
The only issues I have with it is that I can't use it to turn my aerosurfaces on or off, or to turn the
rcs on or off. The keypresses are going through properly, but Orbiter just isn't registering them
right, or something. I CAN switch between linear and rotational rcs though. I also have a killrot
button on the trigger (the most commonly used function for me), and the big orange throttle
button is kill engines for me. I also have the mouse pointer set to the mouse stick on the throttle,
and the back throttle POV hat is set as such: (left = left mouse click, right = right mouse clcik, up =
hover thrusters up, down = hover thrusters down). Am thinking about setting the second POV hat
to landing gear and nose cones, with multiple modes. Maybe when I have everything set up how
I like, I could offer to send the profile to anyone else using the X-45.