You don't need MVC, and the assertion that webforms are dead is both misinformed and bad advice. I needed to create a website for my company 6 months back [without any .NET restrictions], and I choose .NET 2.0. That and the Ajax extensions are a pretty phenomenal package, and you can create something pretty good - most of the web at the moment is still on .NET 2.0. The overidding factor here will be you choice of data access.
If you go to the asp.net link above and can do the first 10 Scott Mitchell tutorials, trust me you will be in good shape if you are stuck with .NET 2.0. Ultimately think the n-tier layering as a WPF command class that deals with your data. The rest is just HTML, databinding and hopefully some javascript