How to use silverlight control in asp.net webpage

I tried to follow the steps given in the first link
i.e.
http://msdn.microsoft.com/en-us/magazine/cc135987.aspx[^]
 
for the same I downloaded Silverlight.js file from
http://archive.msdn.microsoft.com/silverlightjs[^]
 
but in the very first example of growing and shrinking green sphere I was unable to see expected output. I see a blank white page. Is something I am missing. I tested my silverlight installation, its perfectly running sample silverlight application in browser, so no issue in silverlight version etc. Because the article posted on the link is too old. So there may be some updates or change in way of using. Please let me know where am I going wrong.