Please uninstall the following items.
Acrobat.com
Acrobat.com
Adobe AIR
Adobe AIR
Adobe Shockwave Player
Java(TM) 6 Update 5
Java(TM) 6 Update 7
LiveUpdate (Symantec Corporation)
LiveUpdate (Symantec Corporation)
Norton Internet Security (Symantec Corporation)
most likely this is the cause of your issue.
Viewpoint Media Player
You have 2 internet security programs installed and active, you should only have one. Most likely this is your issue why you can't update anything.
After you get done uninstalling them, please go here and download and install the latest version of java
http://www.java.com/en/download/index.jsp