I'm in FL on vacation and don't have access to "my stuff". However, if you are using Visual Studio 2010 or later, the Access jet engine that the DB examples are based on has been removed. The new version of the book (with the red trumpet on the cover) has totally redone the DB chapters to use Microsoft's Sequel Server instead. While I feel badly that you're having problems, the only solution is trying to adjust the code for MSS, or spring for the $22 Amazon is charging for the new book. I'll take a peek at the code when I get home and see if there's anything else I can do.
Jack Purdum, Ph.D.
Author: Beginning C# 3.0: Introduction to Object Oriented Programming (and 14 other programming texts)