Shawn Wildermuth has posted a nice simple example of drag and drop in Silverlight 2. If you’ve been intimidated by drag and drop, Shawn’s example will show you how easy it can be.
I've been trolling the Silverlight.NET forums again and there seems to be a lot of questions about Drag-n-Drop again. There are several solutions including a Telerik framework for it that you could look at but I decided to do a very simple example of dragging an item.
Shawn Wildermuth - Drag and Drop in Silverlight 2