All I needed to do was rename the “Library.xml” file to “iTunes Library.xml”, and now everything works perfectly.
I am running Firefly Version svn-1673 on Maxtor Shared Storage Plus NAS, streaming via Linksys WRT54GS WiFi through Roku Soundbridge M-1001 (without turning on a PC!) and it works great.
By the way, because Seagate bough Maxtor, the MSS+ can be found on clearance at staples for <$50.00. Now that I finally have playlists working, this system is **almost** perfect. The only thing missing is the ability to stream drm protected files from the iTunes store, but I think a possible workaround is to burn to CD and then back to iTunes.
Thanks again for your help.