"I come from a C # background, this is my first Silverlight project, but I'm new to Windows."

Now that is comedy!

Maybe jQuery will help? https://stackroboflow.com/#!/question/11261

I got a surprisingly comprehensible (and similarly recursive) ListView question: https://stackroboflow.com/#!/question/15327.

Similarly this one: https://stackroboflow.com/#!/question/19297

Sounds like jumpstarting your userbase would be easy, once you allow users to define other users :)