Silverlight for Windows Embedded

We have a hand coded pseudo Silverlight C# application where we consumed the XR Framework via COM interop. I'm looking for some sample C# code that consumes the IXRDelegate<ArgType> type. Rendering the xaml etc has gone okay, but we have hit an absolute dead end with events beyond the Button.OnClick, doing mouse over for example is causing some severe stability problems. 

Any help is appreciated, we are sort of out on an island here because no one in their right mind should be doing this.

Chris