Recent changes in Java security policies have required that the applets on this page be signed. The applets will not run from the Chrome browser, so try Firefox or another browser. In order to run the applets now you are required to be running the latest version of Java. If you have ever run the applets before you must clear your applet cache for the applets to work again. The official Java website has instructions on performing these steps on a variety of operating systems at http://www.java.com/en/download/help/plugin_cache.xml. On the final step, it is vital that you select Installed Applications and Applets in addition to Trace and Log Files and Cached Applications and Applets.
You will still get a message about security when you click on an applet. Click the box that you accept the risk, and the applet will run. Please send email to email@example.com if you encounter problems. We hope to move the applets to a new secure server soon.