You can uninstall the previous versions and just keep J2SE Runtime Environment 5.0 Update 6. The others are simply taking up space.
John
I am running windows xp on a dell dimension using ie 6 and firefox to surf the web.I have a 1.8 celeron proc and 768 mb of ram. I noticed the other day I have Java standard runtime V1.3.1_04 I also have update 1 and update 2 and update 6 Together these updates take almost 390 mb of space. Do I need to keep all of all the updates or can I uninstall the older ones, and keep only update 6. I am a little confused about what I need and dont need. Thanks for any help. Bill Wegman

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