Installing new icons on Mac version?

I’d like to install the new UI icons on my Mac version of Blender 2.45. I followed the instructions I found in the Wiki (basically install the icon.png into a new folder /icons in .blender) but the new icons don’t appear in my user preferences? Is there a “trick” to making this work? Thanks!

Well, the name of the directory in which you put the icons should be:
Icons

I’m not sure whether you used /icons, or icons, but that won’t work.