Well...
I think it was a good noob tutorial, but rather than making a tutorial that someone could find just as easilly by typing "Flash Tutorial" in google, why not make one that encompasses some of the more advanced flash stuff, like making good walk cycles, techniques for frame by frame animation, advanced actionscript, you know, that kind of thing.
Oh yeah, and another way of tracing (which I like better) is putting your image on one layer, locking it, making a new layer and tracing over the image. That way you don't have to rely on the onion skin, and you can add in shadows, and more detail if you want to. Maybe you can incoorperate that.