That's because the latest version of Safari for Tiger v10.4.11 is 4.1.2
Your profile indicates you are running v10.4.6 ?? That's outdated also.
Click your Apple menu (top left in your screen) then scroll down and click Software Update...
After the update is installed, repair permissions.
Safari 3.1.2 came out around June 2008.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.