The 404 file not found error I had is fixed. Firefly is running on a WD Mybook and I was trying to access it from a PC. I searched the Mybook to see if I maybe had mt-daapd in two different places, and found I had a similar path in the /usr/local/ path. When I moved your files to there, it loads and streams just if I access it locally at 192.168.1.x, but when I try to do it from my dyndns.org address outside the local network, I get the player screen, but no music gets loaded and IE7 locks once the spinner quits spinning.
FireFly Media ServerThe original FireFly Media Server