Broadworks Receptionist Console & Java Issues

We use the Broadworks Receptionist console software in our corporate office, which requires Java on the client computer. Today, we received an error that Broadworks requires the latest version of Java to run, so we updated Java. Now we're getting an "Application Blocked by Java Security" message stating it won't allow software with expired or not yet valid security certificates to run. I tried adding the exception (http://wdv-ews09.area4.il.chicago.comcast.net/) into the java console security tab but no success. Any ideas?  I cannot find any documentation or system requirements from Comcast for their release of this software.

Thanks for any suggestions,

Jim