Hey Simon, first thx for your reply 22-2-2013.
Eventually I paid a proffesional programmer (at codeable.io) to fix mp3-jplayer to work with my site. I had another player in my theme that also used a (newer) version of Jplayer, so he built a switch to switch between your player and the theme's player per page. Cool.
Most players out there are aimed at video so you have a nice niche here, with all the features, like playlists, and not too big, and inline player... Good! Best audio player out there as far as I'm concerned.
Keep up the good work and try not to loose users to other players.