Contacts Transfer Orange 6230-Vodafone6810

I have a Orange 6230 with my contacts saved on the phone memory. I also have a dku-2 cable and PC suite installed on my PC where i also have all the contacts from the phone memory on the PC.

I have a new Vodafone 6810 and i want to transfer the contacts to it. I can pair the two phones via Bluetooth but can't see any way of transfering the contacts between them.

Also when i connect the 6810 to the dku-2 cable the PC says it doesn't recognise the USB device so i can't transfer the contacts that way.

How can i do it?