I received couple of emails giving the heads up stating that the sample project that I posted couple of months back was having troubles with the released version of Silverlight 1.0. I finally got the chance to spend some time on the sample and, indeed, it required several changes to make it work. If you are interested in the details you can check this extended post in my blog which also talks about a future update for Titan.
The updated zip file with the sample can be found on the GotDotNet User Samples site. This is how the sample will look like after you install it and configure it correctly.