Using the Entity Data Model with ms Access 2003

One of the specs for my current project is to 'Use the existing ms access database', but I would like to build a data access layer, using the Entity Data Model. Is this possible? When I try to add the Entity data model, and point to the access database, I don't get the option of using the Microsoft Access Database that I get when I just select dataset. Is it possible to do this?

Sorry, I should have said that I'm using VS 4.0, programming in C# 2010