Hi,
here:
http://launch.groups.yahoo.com/group/bc2000/files/Sonar%20%28Sequenzer%29/
i created a folder (with a link to the sourcerforge site) and to put additional information in there (and maybe also the original files?)
http://sourceforge.net/projects/bcr2000control/files/
It is quite elaborated and already at version 1.2.
See the ReadMe for an overview. I havent quite worked it out yet. But it looks very promising: Full Duplex, MMC Control, etc.
It was also announced The official Cakewalk forum.
Let us hear from your experience.