If you want to revert the tab behavior to that of Safari 3, you can disable "Tabs on Top" with a hidden preference key: http://observationpoint.org/articles/2009/02/24/disable-tabs-on-top-feature-of-safari-4-0-public-beta/

Wait for Red Hat 6, or download Red Hat 5.9. The default window manager is Enlightenment + GNOME, and has all the latest libs and programs.

I still don't like Red Hat, but use it for the lack of something I like better! I like slackware, but I want glibc. I'd try Debian, but I don't have the time to go through its complex install. I might give OpenLinux a try...