Here's one great app that is used to program bcr/bcf using sysex: http://bebop.audioshot.net/bcfredit_V0.41.zip it's 'Birdie's universal editor', you can hook it to MIDI-Ox and tap the communication, but I think request message doesen't work there either:(
Message
Re: [bc2000] Re:Sysex details for BCR2000
2006-12-12 by Spacing Guild