is this all what is there in the web.config management folder?
Yes, that's all. You may want to download the code for the book from the Wrox web site and see if you can spot a difference.
Are your Management pages inheriting BasePage (that is, did you use the template for it)? If they are, they shouldn't as that applies the user selected theme.
If this doesn't help, can you:
1. Describe the pysical structure of your site on disk
2. The address you see in the browser's address bar?