The problem is simple - you want to read the docs but you don't want to install beta code on your main dev machine just to do so. Well a partial answer is to install the slightly shortened help that came out for the Express edition. Download from http://www.microsoft.com/downloads/details.aspx?FamilyID=2adbc1a8-ae5c-497d-b584-eab6719300cd&displaylang=en