LLBLGen Pro is a DAL framework, and so it has nothing to do with WCF.
So you have to do the WCF part.
We have developed a WCF example project to demonstrate how to transfer LLBLGen Pro objects through the wire, I encourage you to download it, from our website:
http://www.llblgen.com/pages/examples.aspx
You can start by reading the ReadMe.txt to get a fair idea about it.
