My book has recently gone through a reprint and for this I have updated the lab instructions and relevant text to reflect changes from the Orcas CTP that was available for Visual Studio 2005 to the Orcas tools released with Visual Studio 2008. The only chapter with any significant changes is Chapter 1. In fact, I barely had to update other chapters. So, O'Reilly has agreed to let me post the updated Chapter 1 here.

http://www.thatindigogirl.com/downloads/LearningWCFChapter01VS2008.pdf

Last year I updated the labs and code samples for Visual Studio 2008, but I have posted an update to that link with the final changes associated with the book reprint. 

http://www.thatindigogirl.com/downloads/LearningWCFVS2008.zip

Don't forget to review Appendix A for setup instructions related to database, certificates and other security settings.

http://www.thatindigogirl.com/downloads/AppendixA-Setup.pdf