Thanks so much for the quick reply,
I downloaded once more the .zip file, unzipped it and transferred the folder bare-conductive-arduino-public to ibook/Documents/Arduino/Hardware folder as I had done before following the instructions, so now what I have within the Arduino folder is:
Resetting the application and the board I still find in Board: ''Arduino Leopard'' and no Bare Conductive Board in the list. The Port shows:
The USB port on my laptop now shows:
Thanks.