Hi Everybody!
Sorry for the downtime but I've been very busy in "real life" and this site is a one-man-job. As you can see, I've upgraded the site from Drupal 4.7 to Drupal 6.2 and imported all the old content.
Warning to other Drupal users: don't use too many modules. I found a few made the upgrade much more difficult that it should have been.
Future work:
1. Restore the custom front page.
2. Restore the navigation menus
3. Add a new book about implementing SELinux.
4. Try to restore old verbose URLs rather than node numbers.
5. Restore Forums
Anyway, we're back and enjoy.
Dave