Seeing as how you can't buy new clusters anymore, can you post an autoscan with the cluster you're attempting to match installed? And then a second autoscan with the original cluster?
That will get us the part numbers and software version numbers of each as well as the current error codes.
Also, since I assume you're attempting to match a used cluster, on immo III clusters, which yours should be, you would first need to login with the cluster's CURRENT PIN first before going to adaptation 050. Then once in 050, you need to enter in the PIN number of the old cluster/current to complete the process.
If you don't have both PIN numbers, you will not be able to successfully accomplish this.