Silverlight - Getting Started
The Silverlight Community site at http://silverlight.net contains samples, tutorials and quickstarts for Silverlight. You can find detailed developer information at http://.microsoft.com/silverlight and http://msdn.microsoft.com/silverlight.

Some great blogs from the development team behind Silverlight can be found at:
http://blogs.msdn.com/jstegman/
http://blogs.msdn.com/mharsh/
http://blogs.msdn.com/webnext/>/li>
http://blogs.msdn.com/brada/
http://weblogs.asp.net/scottgu/

The Channel9 site for Silverlight can be found at http://channel9.msdn.com/tags/Silverlight.

How to find out if a trigger was fired by a delete transaction?
A popular method is to compare the counts of the inserted and deleted virtual tables to see if they match. Here is a simpler method: use the Columns_Updated function. When a trigger is fired by a delete transaction, Columns_Updated() always returns the varbinary value 0x. The following check will verify that the trigger was fired by a delete:
If Columns_Updated() = 0x