Bonnie, I don't know if this will help, but I wrote something in CoDe about a year ago, that creates some basic WCF factory classes,
http://www.code-magazine.com/articleprint.aspx?quickid=0902071&printmode=trueIt's the first 3 items from the article.
As I look back (wow it's so bizarre to look at an article I wrote a year ago!), it doesn't use datasets, but it covers a basic DataContract and ServiceContract and it might help.
Kevin