Well this is a longer learning process, the xml modding is very buggy.
You can try my video tutirials:
They cover installing the alamo tool to 3DS Max, using shaders, exporting model, adding icons or text to the game and (from part 10) how to code a spaceship.
The first 3 videos might be useless but from part 4 on it begins to get interesting:
www.youtube.com/playlist?list=PLild8kZ8-...aGqLWuJdGFSSXlrv3B_9
Baal wrote: Oh, that's unfortunately not possible, the game doesn't work that way
Technically I guess it would be doable, but it requires advanced game scripting skills.