I always talk about it because it takes a long time to figure out for yourself. Scenes are there for people who don't use actionscript or very little actionscript to control their movies. You can use a little actionscript to control which scenes play when and you can make a whole "movie."

You still draw stuff on the stage and animate with tweens and frames. Just put everything in clips (container clips) for easy reference and management. Use _visible to show the clips when you need to.