I'm looking at the safari 3 screenshot and I don't see tabs in the title bar. I'm pretty sure it wasn't till safari 4 beta. The safari 5 screenshot you have is

I'm looking at the safari 3 screenshot and I don't see tabs in the title bar. I'm pretty sure it wasn't till safari 4 beta. The safari 5 screenshot you have is EDGE with a safari installer in front of it.