Sorry let me clarify.
I am learning ASP.net for my job, and I am doing it in the office, but I cannot use the phones in the office, so I can't call them.
I have found the problem. Diagrams have been removed from the 2012 version because they are no longer supported. I dont know why they have kept the greyed out diagram icon, but the folder for "Database Diagrams" is no longer there.
So how do you suggest I do step 2 onwards from page 498?
according to this, the diagram Pane is still accessible.
I'm very confused, and I'm sorry for bothering you so much.