Preloading and Displaying an Image


View this Image:

Actually I tried this article:
http://www.kirupa.com/blend_silverlight/preloading_displaying_image_pg1.htm

An error is occuring. I dont have any idea to fix this. Please have a look on it and help me to get rid of this error. I’m using Silverlight 2.0.
Please reply me as soon as possible