Elwood- unfortunately, at this time Fitbit only has the ability to send Go365 step data. This means only the step information will be sent to Go365.
The way you can earn Bucks through a Fitbit fitness device is:
• 1 Buck per 500 steps
You can earn up to 50 Bucks per day. If you exceed 50 weekly workout Bucks, you will receive an additional 50 Bucks, and if you exceed 100 weekly workout Bucks, you will receive an additional 100 Bucks (only one bonus is awarded per week).