We've just posted a new zip and tar file for the book's code examples at: http://www.jbossatwork.com/downloads.html
You can also use our Subversion respository if you'd like (just follow the link on the page). If you have an IDE, use this URL to connect to the repository: http://www.jbossatwork.com/repos/jaw/jaw/trunk/
We've taken care of the previously missing ant tasks (colddeploy), and made some bug fixes per reader comments.
When we wrote the book, we only had JBoss 4.0.2, but some of the Hibernate JARs were moved in JBoss 4.0.3. So, please check the README.TXT file to see how to use our code under JBoss 4.0.3.
As always, if you have problems, please send them to us at:
Tom and Scott
P.S. Yes, I'm finishing up article #2.