Please follow these instructions to enable the Sun JRE through your Web browser:

Internet Explorer 4.x and Up

Click "Tools" --> "Internet Options"

Select the Advanced Tab, and scroll down to "Java (Sun)"

Check the box next to the Java version

Next, select the Security Tab, and select the "Custom Level" button

Scroll down to "Scripting of Java applets"

Make sure the "Enable" radio button is checked.

Click OK to save your preference.