The good news: If you update you system through software update to the latest version of java you should be able to use Insite to its fullest extent. Or your computer probably says inactive plugin when the uploader comes up. Click the java screen where the inactive plugin shows and it will prompt you through the appropriate steps. If not send me an email and I will help you firstname.lastname@example.org .
Apple has updated computers through an auto update. They have put Java on a malware list so it wont run. Here is an article if you would like to know more. http://tinyurl.com/a4s5q7b
Permanent (relative) fix 2-15-2013