The key i use daily has given up the ghost if i manage to open it tonite can i start it with the spare? can i programe it to the settings i have now? if so could some please tell me how to do it Cheers  Current Stable:
Range Rover 2003 TD6 HSE Alveston Red, Sand Leather
Ford Focus C-Max silver 2003
V/W transporter Blue 1995
Yamaha XJR1300 Yellow 2002
Kawasaki ZX7R Green 1998
Honda CBR 600 Black 1998
Yamaha RD125LC Mk1 Red 1986
Yamaha RD125LC Mk1 Blue 1986

There is no difference in the keys, they are all the same - so your spare should work... 

They keys may be keyed to certain memory positions don't forget but that would be the worst of it i'd imagine.

I have one key setup at position 2 and one(daily user) for position 1.

I think its designed for people who share(!!) their FFRR with their other halfs....