Hi there,
This is not directly related to the book, is it? If it's not, you're better off posting in the ASP.NET 3.5 Basics or Pro forums located here:
http://p2p.wrox.com/asp-net-3-5-basics-351/
http://p2p.wrox.com/asp-net-3-5-professionals-352/
This way, this forums stays focused on the book, and you'll draw more attention in the other forums.
That said, this is not an easy thing to accomplish. Or at least it gets messy pretty quickly. There is no built-in questionnaire support, so you quickly end up with lots of If statements. As an alternative, you could look into Windows Workflow which could be used here, but is an entirely different beast.....
Cheers,
Imar