They made an LSU CCT2 tool to bring Blackboard 8 courses over to Moodle 1.9 (which can, of course, be imported into Moodle 2.1).
I looked into using CCT2 before I decided to extend Ziba Scott's converter instead. From what I recall, CCT2 does work well but it doesn't bring things across in a very Moodle-like format. It creates HTML pages and links files into those, rather than using topics to store things like a native Moodle course would.
Your mileage may vary, it might just have been the particular Blackboard courses I tried to convert using it.
As for my modified converter, things aren't looking good on the 'sharing it with others' front. It looks like the only backup I have of my Blackboard Migration server is corrupt, and that server has now been completely wiped. The search for a non-corrupt backup continues.