The SDK samples for Microsoft SQL Server 2008 © Developer Edition are no longer shipped in the box. If you install Client Tools SDK feature from installation disk, you get a folder Samples with only HTML file there saying:
There are many code samples and sample databases available for Microsoft SQL Server. These samples are no longer shipped in the box. Instead, you can browse through and download the samples in several different projects on CodePlex.com. There is a portal samples project which directs you to all the other SQL Server sample projects on CodePlex: http://SqlServerSamples.CodePlex.com/.
So navigate to codeplex and download samples from there. Enjoy (if you can).
Interesting, what to do if you have no internet access actually?…