I was once a musicmatch jukebox user too until I used windows xp and media player 10 (yes I was late to upgrade to xp it was like 05) Anyways I checked out jukebox when Yahoo bought it and its complete crap and I think its stupid how you lost your subscription to plus but I don't think you can do anything about it because its a new company. My advice switch to iTunes, WMP, Winamp or there are alot of other great programs open-source and close-source.
I've had Musicmatch Jukebox Plus since 2001 and was very happy with it. It was the best player/recorder going. Then Yahoo bought them out a couple years ago everything was fine until they decided to stop supporting the old Musicmatch and redesigned it to "Yahoo Musicmatch" to force us to resubscribe to the new one which is a downgrade from what I had.
I had bought the "Plus" upgrade in 2001, which was a "Lifetime" subscription and I'm mad as Hell that I lost what I had bought and paid for and was happy with. This should be illegal to just "turn off" somebody's software to force them to buy their new version.
That's kind of like GM stopping my 2003 Monte Carlo from running because they quit making them this year!
I hope others out are mad like I am and start a lawsuit against Yahoo!
I'll join and help them!!