I recently bought a new fiesta zetec s and im having bother connecting my bluetooth with my phone - my phone is a Sony Ericson C903 and according to the ford connectivity website it is compatible with the system!!!
I have a Focus with a Nokia phone. You have to pair it, Switch on radio and switch on Bluetooth on phone. Phone should search for devices a find Ford Audio it then askes for pin code. Enter 0000 should now work. Mine did OK
I used to make the complexity chart up for Fords Bluetooth audio on most of the cars, and I'm pretty sure that this phone was on it. Follow the pairing procedure properly .. it should work.