eh...
I've been using Flash for 3 years, not much help here. Basically what I tell people when making walking is to use keyframes and NOT motion tweens for the love of God. Of course, if they aren't the artistic type and don't know how people move their joints (you'd be surprised how many people don't seem to fuck it up) this would be useful. Still nothing amazing, and I think a 10 would be ridiculous.