As for the rotation of your lightsaber model:
Are you quite sure you are doing everything correctly? Which lightsaber model is it (what is the path to it)? It is a .md3 model, right? Are you sure you are entering the "angles" key properly, and a value in the format "x y z" (a la "0 90 0")? I have used the angles key many times, now, without any problem...