Nope, that's not it: I tried clearing the cache. I also tested another working favicon (just to make sure the first one wasn't corrupted), and it wouldn't show up as well.
It shouldn't matter what version of apache is being used because all the favicon is is a file. As long as it's in the correct directory so the server can find it, then it should work.
What browser are you using? So far, on the Mac side, the browsers that suppor fav icons are Safari, Camino, and Mozilla. Gotta make sure your web browser supports it.
It worked!!! I didn't know that - in addition to deleting history and emptying cache - I needed to delete the bookmark as well. When I did, it worked.
Thanks everyone for their help.