If you are using JBoss 3.0 or higher, port 8082 is closed off apparently, and use this path instead:
This is cool because you can implement your own security here (session tracking etc).
If you are using JBoss 2.4, unzip the attached file, and add the following to the bottom of your jboss.jcml file under JBoss Server Management:
Obviously you need to change the username and password!!
Good luck with it. I was amazed that this wasn't standard.