Anyway, the question to control the soundbridge remote is not firefly related.
However, doing a quick search got me the following link:
http://forums.rokulabs.com/viewtopic.php?t=6078
Did you find this page as S80_UK suggested? http://www.rokulabs.com/community_3rd_sb.php
You could also take a look at this http://sbcommander.sourceforge.net/