Welcome to this tutorial. Please vote fairly and not low just because it has sprites, it's a tutorial, or both. Also, this tutorial is mainly because I made an advanced one, and I think people should know the basics through yet another tutorial of what they've probably seen in 6-7 other tutorials. This also teaches some extra hints to newbies o they can get on the fast track. I'm already 1/4 done with my 3rd tutorial (Geez, all tutorials and no flash) for a very useful thing. I think you'll all find a use for it... If you're a spriter anyways.
On an extra note for all the sprite haters that watch this, I think we know that we're not using our own graphics. That's why we use sprites, cause we can't fbf worth crap and know it. That or we can, but don't want to.
(note 12/29/12) This is quite old. Like, when Flash was just becoming Adobe property rather than Macromedia. Some things might not quite sync up right. Just a caution. Also, ignore my young butthurt. :P