Due to the requests.. Rated 5 out of 5 stars
I also had been craving this theme for other OS's and Firefox 3.x. I have been patiently waiting for an update, though there are limits to my patience. So, I have updated (and slightly modified) the theme to work in FF3.x.. see:
It is currently in "Experimental" phase that I hope to have reviewed and promoted to "Public" status soon. I gave Egmont credit for the original theme art (had to modify it and add on a bit for FF3.x), and Xavius credit for some of the code.