Dan is correct in that you can call the service classes directly. But if you want some service layer that isn't so large, I might be able to help.
With the knowledge I absorbed from the DO Factory folks, I built a code generator that can generate the code for the Patterns In Action 3.5 framework as well as a simpler ServiceLayer -> DataLayer framework.
You should go to http://www.kingwilder.com/Blog/tabid/55/EntryId/32/Design-Patterns-In-Action-Code-generator-screencast.aspx and watch some of the screencasts.
Let me know if you have any questions.
King Wilder, Aug 27, 2010
In the documentation for the Design Pattern Framework there is a section that describes in great detail how you can bypass the Server and Hosting Layers by directly referencing the assemblies from the Service layer project. This is a common model to build web applications.
However, if you are building your own application, I would suggest you start building your solution from scratch with UI, Service, Business, and Data Layers. Then study the Design Pattern Framework and take only what you need. This way you'll be able to quickly assemble a light-weight N-Tier applications.
Hope this helps.
Dan McMillan, Aug 25, 2010