right,
take your door card off, make sure its not binding on somthing, get a bit of greese/vasealene and rub it on all the rods, u will see a rod coming down from the door pin, and then going to a motor, check all of that and then make sure its not the motor thats f**ked, if it is it will need replacing, u can get a universal central locking motor from maplins, if u have ne probs wait till the end of aug/ begining of sept when im living down in bournemouth and bring the car to my house and i will fix it for ya....