Octvia 4x4 electrics

From what i can gather from all the stuff i've read about this problem a replacement ccm box needs to be programmed to the car.

I shall be calling skoda tomorrow to find out if this is true and how much they will charge for the procedure

You need to search the Ross-Tech wiki. Nothing mentioned about the CCM on the Immobilizer info page

Would I be right in assuming that you've tried changing the CCM, but not got access to VAGCOM to see if the replacement module isn't still chucking out fault codes ?