I'm currently making a flash movie and I have made several different scenes in
several different files. (file for each scene)

I was wonder how to put all the scenes together to make one big movie and have
background music playing through out the whole thing.

I quick reply would be MUCH appreciated, it's a bit urgent. Thanks

SWFs including sound tracks are commonly combined during run time using the
loadMovie() command. Instead of putting it all in one monster movie and then
use gotoAndPlay(), you just loadMovie() to bring in the fresh stuff when you
need it.