does anybody have instructions how to frost one of those barbie doll's? thanks for your help!!!

Here's the link to the instructions on the site. If you look at the top of the page you'll see a tab labeled "Wilton pan instructions." I think most of them are on there.

http://www.cakecentral.com/wilton-pan-instructions-164-Wonder-Mold-Pan-2105-565.html

If you mean one of the doll cakes, there are some instructions here...

http://cakefun.blogspot.com/2005/08/how-to-make-barbie-doll-cake.html

Remember: - We, of course, do not sell or market Barbie Doll cakes. Barbie is proprietary and can only be sold under licence.

Most instructions, eg "Dale Koppel's step-by-step instructions for creating a Barbie Doll Cake at home", are for home use.

We all make "doll cakes" with generic products, don't we?

I think it'd be okay to use an actual Barbie doll in/on a cake you're going to sell. In the same way it's okay to use cake toppers you've purchased. I don't think you could market it as a "Barbie" doll cake though...just a doll cake.