mswlogo - Sounds like you've really figured this stuff out. My hat is off to you.

So you suggested just installing the 3500 ver B over my stock bluetooth files, while others recommended upgrading to the 3100 stuff, THEN going to 3500. What's your recommendation with C? Should I just try installing it, and if it fails hard reset and try it again?

I've got my backup if whatever I try fails. And with any luck, my bluetooth headset will be here shortly.