He's not helping because you know exactly what you're doing. Therefore, you know what's wrong and you know how to fix it.
HINT Admit that you have no idea what's going on and chances are, he'll solve your problem in a single post.
and here's a version of my headswaps that doesn't actually work as well as I want / very well (though at least you can do some basic headswapping as seen in the screenshots Raz0r put up)
if you want to e.g. have rosh's head on kyle's body, you'd do, as normal, /model kyle
then do /color2 1rosh_penin to set the second saber color to whatever color 1 is and the head model to rosh (this way other players who have this can see your heads..)