Ford Focus (1999) key fob re-programme help needed?!?

I have a 1999 ford focus, i have tried the reprogramming sequence as advised by turning the key to position I then II and back 4 times, when I do this I get the chime noise, however, what I do from here nothing works. I have tried keeping the key in the ignition and pressing lock/unlock and waiting 10 secs and tried taking the key out and doing the above but there is nothing at all happening when I do this. The jey works fine opening and locking the central locking when used in the drivers door but the remote locking is dead. Please can someone help me. Thanks Mike

Mike
February 2010