This guide to using Service Bus says the first step is to create a Service Namespace. I don't see how to do this in the portal for Azure Web Sites. The UI doesn't match the instructions given. I'm wondering if these instructions were written for Web Roles and don't work for Web Sites. Is there another way to do this from a Web Site?
When viewing the new Windows Azure portal, move your mouse over the word "Preview" in the topmost navigation bar.
A dialog should appear. When it does, click the link to take you back to the previous Silverlight portal.
Hope this helps!