I've googled and googled and searched the oesf forums and it doesn't seem like anyone has an answer. It appears that you would need to get btsco compiled but its dependencies include alsa etc. which looks difficult to get running on a 2.4.20 kernel. I'm most interested in using it with KPhone, so I need it to work with voice quality sound as well as a mic.
Love to hear if anyone has had success.
DoTheDog