As previously, the newly released 0.1.0-d update (patch, tarball) contains support for two more firmware versions, those with sha1sum c6c94dd77b864f8bd231abf3cb2de4c9d139e1bf and sha1sum 01e291d529e7c18deea2eba252d18114e096276e (provided in the latest OS X 10.4.8). This should make it work again for everyone.
If your firmware is not recognized, please do not just say that it is not recognized. Please send me a copy of your firmware file so I can make it work. Eventually, I hope to be able to redistribute the relevant part of the firmware so I don’t need to jump through those hoops, but right now, this is the only way that I can think of to make it work without getting in big legal trouble.