Do you know if there is any software development kit for Musicmatch Jukebox or other developer information that could be of help ? Information how to interface to it would help a lot and make chances for support more likely.
You can find here what support is in 0.3.2:
http://www.skippari.net/lcd/lcdinfo_features.html
There is more support in 0.4 and 0.5 but those features will be revealed more closely when there is something to show.
I don't think that overnet is supported as I don't even know what it is ?