I assume the applet is in the file eCHAMPS_MESSAGING_APPLET_JAVA.jar. Does that get downloaded from the web server when the applet runs (check the web server access logs)? If so, is the file properly packaged, i.e. the applet class at its top level?
My first bit of advice is that if you are going to be a mime, you shouldn't talk. Even the tiny ad is nodding: