Use Silverlight to build a Live Messenger Login Screen
Jose Fajardo built a Windows Live Messenger Login with Silverlight / XAML, and has a great step-by-step tutorial on how things come together.
http://www.cynergysystems.com/blogs/page/josefajardo?entry=live_messenger_done_with_silverlight1
This post is worth taking a look at for two types of folks.
#1 - The Skimmer
Skim this post, and you can easily and quickly see how it all comes together, without engaging the finer details. This is possible because of the very nice graphics, and split XAML parts in the post.
#2 - The Repeater
Read it, Read it again, then open Visual Studio and try it on your own.
Good job Jose, this is a great tutorial.