Ok...Here are the instructions to Port Forward this will open a port in your modem router to let limewire pass through...
Port Forwarding for the BT Home Hub
Also try updating your Java...
Try uninstalling your Java from the add/remove programs and then re-install the JRE 5.11 offline version....
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11