Excellent! That takes care of the first item. Thank you, Stuart!
Changing the port did the trick, but it seems like everything is still relative to the root of the domain. Whether port 8080 or just 80, I'm not able to figure out how to distinguish between a sub-domain and a root. If I wanted a blog app at blog.mydomain.com and everything else at www.mydomain.com, how would I tell JBoss to do that?