The Java add-in-version that is appropriate for your WR version (8.2) will be working with your java version (1.4.2_xx). Just contact your Mercury (or HP? [img]/images/graemlins/wink.gif[/img] ) sales rep, they might even send you an evaluation license for the Java add-in so you could have a look to see if it works.
Do you a license ver of WR, if you have then you are elgible to post. Also I request you to go thru the tutorials of how to work with Java applications. because the basic concept to work with java app is to have java add-in.