I have recently completed to develop a basic course for learning how to use the Entity Framework. The course covers the changes introduced by the .NET 4.0 framework. It is a short course that includes 16 academic hours. The purpose of this course is to set the fundamental basic knowledge required for using the entity framework. You can find more info about this course at www.xperato.com.
The community version is available for free personal usage at www.abelski.com. In addition, you can find short video clips that explain various aspects of the Entity Framework available in my Entity Framework YouTube Playlist.