Re most current Java update:
Begin quote from my scan:
Oops! You don't have the recommended Java installed.
Your Java version is Version 6 Update 5. Please click the button below to get the recommended Java for your computer.
NOTE: If you recently completed your Java software installation, you may need to restart your browser (close all browser windows and re-open) before verifying your installation.
Download Free Java for Windows
Windows Vista, XP, and 2000 Server
Version 6 Update 6
End quote
NOTE: v6 u6 is the most current. Delete others after update.
Edit: Watch it! Installing from that site has an installer for Open Office Java checked. You will have to uncheck it if you don't want it. Also, remember to go to Control Panel> Java> Update tab and "uncheck" to 'check for updates automatically> Yes> Apply> OK.
It is not recommended you run the jusched update process.