Can not uninstall software

Greetings to the community. I am a Linux novice, trying to figure out how to uninstall a default Firefox 2 in order to install a newer FF 3.0.4. I know that I need to uninstall FF2 first, but unable to find an uninstall/remove options in the KDE menus.The only option so far available under “Software” tab is “Install software”. I have browsed through the options but have been unable to find an “Uninstall” option.
Greatly appreciate any help.

Start up YaST from the chameleon > Computer and go to Software Management.