MVC 4 database first with Entity framework 4.4

I am trying to get a handle how to build an MVC app using the new scaffolding tools.  However, all the examples are using code first to build the app.  Well in real life the databases have been in existent for years and we need to build the MVC 4 App using database first.
however all the app are either "MVC 3 App with Database First and Entity Framework 4.1" or "MVC 4 with Code First and Entity Framework" as I have seen there were changes between MVC 3 and 4 which appear fairly significant, such as apparently scaffolding, so I don't what to follow an MVC 3 tutorial.  and indeed, when I tried to recompile a .Net 4.5,  MVC 4, Code First, Entity Framework 4.4 as a .net 4.0 project, (which we are required to use), there were a considerable number of compile errors based on the fact that the compiler did not know what to make of a ".cshtml" file.  Another issue I noted with the code first tutorials ...