Sony Ericsson Xperia X10 :: Transfer All Contacts To C902

My Xperia X10 has developed several faults and has to go back to SE for repair / replacement. In the meantime I plan to use my old SE C902 as a backup. I need to transfer all my contacts from the X10 to the C902. So far I've tried. copying all my contacts to the SIM card then putting the card in the C902. The c902 then promptly declares "List Empty" copying all my contacts to the memory card. Unfortunately the X10 and C902 use different memory cards. sending all contacts via bluetooth using "Bluetooth File Transfer" downloaded from the market place. The result of this is "unable to send file"

backing up the contacts from the X10 to my laptop and then restoring them to my C902. Unfortunately the two phones use different versions of PC Suite and neither recognises the other. I don't want to spend a week or two without access to my contacts, and short of sitting down with an old fashioned paper and pen and scrawling them all down before I send it in for repair I'm at a loss what to do!