you still haven't explained why god doesn't need a cause. now, science basically implies that everything is expanding, right? so it would seem logical that it all started at one point. unfortunately, that doesn't explain how what is in that point got there to begin with. so essentially, at the moment, science can't really explain how everything was started. even if the big bang is true, that isn't really the start of the universe, is it?
of course, at this point, we will happily admit that we don't know. we don't make stuff up, just to have an answer. i'll even say that i don't know whether or not there is a god. here's my problem with most people's god theories. that's all they are! people have never met their god, and yet describe what this god is like. i've never met joe danielson(made up name), but i think i'll describe him anyway. He's really tall, blonde hair, green eyes, a little pudgy, quite nice really. Now, he COULD exist, but if he does, it's by shear random luck than through actual intelligence that i knew this.