Interaction Server Protocol not receiving events

I'm a little stuck and am hoping that someone can help.  

I'm creating a proof of concept that monitors interactions and does something based on the interaction received. Using the SDK, I can connect to the conf server, read and write person to the server and capture uncolicited events using the protocol.received event.

I'm now trying to just listen for events that are triggered when an email is received.  I can connect to the interaction server and create a new interaction if I want.  Log files show a successful connection.  If I create a new email interaction, it gets routed to the correct agent.  I don not recive any events utilising the InteractionServerProtocol.Received event handler method.

Is there anything that I'm missing?  Its as if the interaction server doesnt understand that it needs to send events to my service and there is nothing in the documentation or online that appears to help.

Any assistance would be most appreciated.