G'day all again, I've finally sorted out my Verada's dash cluster, I replaced the radio fuse and it suddenly lit up like a Christmas tree :P Still... there's a couple of problems still plaguing me though.

1) The central locking system has died

2) The boot no longer opens

3) The fuel flap doesn't open

4) The trip computer either is blank or just reads the time randomly

5) No interior lights....

Please help!

If it helps.. everytime I turn the car off and on.. the Aircon resets to it's default temp (25*C)

Check the fuses in the engine bay, one of them will likely be the culprit.

Check your BCM is plugged in all the way on all 3 plugs, and as ammerty said fuses in engine bay and under dash for any as well, takes 15 mins with a multimeter and pair of pliers to quickly pull each fuse out. Don't just judge by eye, have seen bad ones that look ok visually still...
I am too lazy to get the wiring diagrams out but possibly some of the relays may need to be inspected as it kind of sounds like accessories power is not feeding through to the cabin maybe... your BCM controls all of the mentioned faulty systems so its something to try anyways.