The first job i had a go at was sorting the driver's lock as it was a pain in the arse locking and unlocking from the passenger side. If you tried from the driver's side the lock barrel would just keep spinning round and would sometimes come out, obviously not good!
On taking the handle apart i found that all of the little pins had fallen out of the barrel. So as a temporary measure, i have taken the lock from the passenger handle and plonked it in the driver's handle. For the passenger side i just put in a lock from some old doors that i have. I don't have the key though, but it isn't too important for now with central locking. Which brings me onto the next bit.......
Before i swapped the locks over, all of the doors would lock and unlock from the passenger side. However, when i got the driver's door locking and unlcoking from the key, none of the other doors would lock! I took the doorcard off and found the reason why immediately: broken wire. 5 minutes and a soldering iron and it was back together. The central locking is now fully functioning all from the driver's door. Oh the luxury!!!
A couple of crappy pics showing the doorcard off:

The broken wire (the black one):

While i was taking both front handles off i stuck some armour door plates on that i had lying around:

One thing i did find whilst doing this was that my doors have a lack of plastic membranes. That is another job for the near future, even though it should be now as it's pissing it down!