Peace be Upon you,
I found in that link the bing maps silverlight control in a way showing all its features by example and having the source code of the example being displayed, I found it really nice to have more knowledge of that great map control.
Here is the link: http://www.microsoft.com/maps/isdk/silverlight/
Also, if you want to post latitude and longitude of location to bing maps, you can build your URL as described in that post:
Have fun with bing maps programming !! 🙂