If you are learning from scratch I would recommend getting a book on ASP.NET using VB.NET. Most tutorials out there assume that you have a little understanding of the technology. Otherwise I would recommend these sites to get started:
Here are a few excellent sites with FREE training and reference that I have found to get myself going using VB to design ASP.NET web pages (with previous HTML & CSS experience already under my belt):
Also, the the built-in tutorials and walk-throughs that are installed with Visual Studio by default can be a bit complicated, but are very extensive and useful if you have the time to go through them.