This page uses java applet so if the plugin is not installed, it will show "Install Java Runtime Environment 1.4.2"
It's not mandatory to have exactly the same version, but it is mandatory to have the java applet installed so it can be run.
To install java applet, refer to: https://java.com/en/download/help/enable_browser.xml
To test the java applet: https://www.java.com/en/download/help/testvm.xml
After installing the applet in the browser, run a report and an applet should be load above the data table.