I'm trying to figure out how to change the mac icon that dominates the upper left hand screen of Leopard. It's part of the drop down menu that you click, and up pops: About this Mac, Software Update, Mac OSX Software, etc, etc.

I find Leopard's Apple icon especially ugly, and would like to replace it with the fruity, retro version from the good old days.

Any help would be greatly appreciated. (Oh, and if I posted this in the wrong place, please forgive. I'm new!)