All About .Net and Sreedhar Koganti
In case if you haven't had a chance to see the backward breaking changes info on 1.1 to 2.0 Beta, then you can find links for it @ .Net Breaking Changes
While moderating forums, I found the post from Brian Goldfarb [MS] mentioning about ASPNET 2.0 Tutorials.
Live ASPNET 2.0 Tutorials are @ http://beta.asp.net/quickstart/
Hope it helps you!