released SLARToolkit I often get similar, basic questions. This is a sign that the SLARToolkit documentation and the samples might be too complex for a beginner. That's why I wrote an easy step by step Beginner's Guide which hopefully closes the gap. The tutorial shows how to build the simplest Silverlight Augmented Reality application possible.
The guide is part of the SLARToolkit documentation at CodePlex. Please read the Beginner's Guide here and let me know your feedback so I can improve it further.