Try to start from the original:
http://www.asp.net/[
^].
Do it only when you are more or less comfortable with basics. In particular, better read whole manual on the language and practice related .NET techniques. Try not to jump it too big steps. Do more simple exercises.
Also take a look at my past answer:
I have a problem with my program. Please help![
^].
Also, take a look at other answers on this page and my comments to them.
Good luck,
—SA