You'll get more useful help if you post this to the forum for the book. Not sure which edition you are referring to. If it's the new 1.1 edition, go here:

http://p2p.wrox.com/forum.asp?FORUM_ID=116

If the older 1.0 edition, use this instead:

http://p2p.wrox.com/forum.asp?FORUM_ID=15

Jim Minatel
Senior Acquisitions Editor
Wiley Technology Publishing
WROX Press