We've completed an October refresh of the SQL Server 2008 samples (http://CodePlex.com/SqlServerSamples). We've heard from you that the install experience for the databases was too complex and error prone. In this refresh we're providing a much simpler install experience with a lot fewer database installers to choose from. Please let us know how you like this new approach.
If you haven't been to the CodePlex SQL Server samples portal page in a while it's worth another look. We've got lots of community based projects going on.
Thanks for trying out SQL Server 2008 and 2005 samples. We look forward to working on them with you!