The WebSLR Java Applet was unable to start. There are two possible causes for this.
If there are no Java security options or that did not solve the problem, you will need to install the Java Virtual Machine (JVM). The JVM was available in most Window OS's before Windows XP. Unfortunately, due to a lawsuit between Microsoft and Sun, the JVM is no longer included in Windows XP.
Instead you can Download and install Java directly from Sun. Just follow the instructions to install it. Installation is very easy but you may need to restart your browser when it is done.
If this does not fix the problem, download and install the latest version of Netscape. On one of the popup screens, check "Full" setup, not "Recommended" Setup. "Full" includes support for Java. Then following the remaining instructions.