Jump In the Car, and push all the locks down, first try and see if you lift the driver side lock up, See if the other door unlock, if not, lock the door and try other passenger doors and lift the lock up, if they open and the driver side dont, i would say its the central locking motor in the driver side door. well thats what i would start with.
There is no downloadable manual unfortunately. Has the central locking ever worked?...if it has, was any work done to the car just before it failed? If you PM me you email address I can email a scan of the wiring for the central locking as you will need to go over it with a multimeter.
If you followed edals advice, the problem may lie in the BCM.