Hi there,
You're not really providing the information I asked for in a private messsage so it's difficult to tell what the problem is. At the end of the book you see a number of possible errors you may run into, including this one. Does any of the resons apply? Do you have your site in a sub folder (e.g.
www.domainname.com/AppName as opposed to
www.domainname.com)? How exactly does you site's structure look? How doo you browse to the site etc etc etc.
Also, you seem to be using the AccessProvider. Did you follow the correct procedues (compile DLL to bin, configure web.config etc)
Maybe your host can help you out. Did you cantact them?
Cheers,
Imar