Thank you for those suggestions.
1) The python prefix fixed the Bluetooth script.
2) I should have tried to enter gconftool -s -t string /apps/billboard/other_logo '' in terminal, but I was confused by the folder entry, so I didn't. But it worked.
3) It would be great to be able to change the text size of a line. Looking forward to the next version.

This Billboard is so good that I would like to suggest an addition. A signal strength logo or bar would be great. Even better, a status line similar to the status bar at the top of the home screen would be even better.
Just a wish for a future update.
Thank you very much.