Hi again,
it seems I was wrong (or the page changed). Now it is not a rtmff-stream anymore. It is simple rtmp and can be recorded using rtmpdump. (Maybe some parameters change in time.)
Code:
rtmpdump -r "rtmp://75.126.107.118/stream" -s "http://www.liveflash.tv/resources/scripts/eplayer.swf" -y "dsgfsadgsfadg?id=92895" -p "http://www.liveflash.tv/embedplayer/dsgfsadgsfadg/1/650/400" -C S:OK -v -o output.flv