Google try google

SOURCE: JAVA multiple programs on disk

no you don't. Just keep the most recent version.

SOURCE: Unable to View Java Applet

"load: class JFI.class not found."
Based on the console output, it means that it cannot find the java applet class. In other words, the applet is missing on the server side. There is nothing that you can do about it, unless you know the person who created the applet. Good luck :)

SOURCE: Opening Wordbiz

Issue

Wordbiz 1.8 does not launch when you run it under vista.

Solution

Just run the program administrator for this:
1. Right click on the icon WordBiz ISC RO
2. Properties
3. Compatibility tab
4. In the Priviledge level section check the box Run this program as administrator.
5. Click OK and restart your application.

From:
http://en.kioskea.net/faq/sujet-3774-wordbiz-isc-ro-does-not-run-on-vista

& we'll sit by the qat and have some za! 

SOURCE: java (TM) Plug-in fatal error

Java (TM) Plug-in Fatal Error
Several java Virtual Machines runing in the same process caused an error

SOURCE: trying to install java 6 it says i already have

DOWNLOAD UNINSTALLER APPLICATION FROM INTERNET. IT WILL UNINSTALL THOSE THINGS UNABLE TO UNINSTALL