"Gardocki, you are correct in identifying that. If you cant get Max to render passable explosions, then you should keep playing around with it until it does, hehe"
I'll correct my statement that combustion can't do explosions. It can me made to do very nice effects, but alone it has limited capacity. The problem with combustion is not necessarily that can't do explosions, but that they are always recognizably fake. With a little tweaking, they can be helpful in creating the effect, but alone they don't do a very good job of it. See my above post for an example of this. I used three spherical atmospheric apparati, 2 particle systems, glow and lens flare. It's a very nice effect, much better than you can get with Combustion alone.
Also, I looked at the animated version and I will admit it looks much better than the still frame.