It's great to hear that the book got you through the rigging basics. Mission accomplished! Of course, like any book, there are a few errors, which are listed on the errata page of the book's Sybex website. But as you correctly pointed out, the DVD has all you need to get through these rough patches, just in case (which of course was precisely the reason why the files were included on the DVD in the first place). So I'm very glad to hear you found the DVD to be a helpful addition to the book!
Learning Blender is a challenge. I'm glad the book was able to help you!