I, too, have multiple entries for Java in Add/Remove programs.
There are several 5.0 updates plus 6 update 1, 2 and 3. Can I just uninstall everything except the 6 update 3 or should I uninstall them all and manually download and reinstall 6 update 3?

And which one should I download? They have two links on the download page. One file is 7.1 MB and the other is 13.92 MB. Both are labeled the same, but link to different files.

Uninstall all except 6 update 3. If for some odd reason it doesn't work correctly after that then of course remove that and do a new download. But it should work just fine.

Thanks!

Ahhh, the wonders of Java. I recently went through and had to delete quite a few older updates myself...