I'm not sure if this will help or not, but I'm using JBoss 4.0.2. There are no errors to report, just that the virtual host setup not working as expected. Of course, I've checked the manual and the forums, but to no avail. Just a nudge in the right direction would help immensly!
Try to get a trivial webapp working on that virtual host. Only if that works, we might have a WS related issue.