Thanks for the reply. I did disconnect the battery but not for 30 mins more like 10 mins, I'll try this later tonight.
So far I've pulled out the relevant fuse for the sat nav in the passanger footwell and left that out for over an hour.
Last night I re-fitted the old unit and the bluetooth and voice control worked.
The unit wasnt purchased from Ford I got it from a reputable dealer with a 3 year warranty. I'm using an Iphone 4s and also a Blackberry Bold
Hi I've just checked with shop who I bought the unit from who have suggested that it probably needs configuring to the car which would fit with your suggestion regarding the software, this had to be the issue as my phone software is up to date. To be honest I thought theses things were all plug and play self configuring!
Hopefully a visit to Ford will sort this out.
Thanks for your help