Thanks for the heads up on this one Matt. I've just grabbed the mix and given it a listen and it sounds more like a rework with Karl's vocals than a remix. The mix sounds like its taken from an audience recording but a very good one at that, and its more like Dark Train than Dark & Long.
Anyway, I couldnt not let everyone else have the chance to listen so I've uploaded it to MegaUpload for dirty pleasure. The link is
here (12.5mb mp3@256kbps).