Thanks!
I've given it a number of shots over the past two days. Once I got everything configured, I still get a "Broker Connection Error" at the office. I assume the firewall is filtering out something the Java applet needs.
If there was a way to generate a simple static picture once every minute or two and simply post it on a server as an image, a Java applet wouldn't be necessary. That low-frequency, no-audio monitoring update would be just fine for my needs.
Thanks again!