The way i did mine is back up the 800 to a vscanner file the use pc to find vscanner file. Copy the folder and then paste it into the pro 668. Then you can open folder on 668
A couple ways you can do this. I have found that when you archive a configuration it does not archive the v-folders. You have to archive each v-folder separately, what a pain. So you could just retrieve each v-folder archive and then the 668 would have them all. Long way.
Secondly, if you use a standalone SD Card reader just insert the 668 SD Card in the reader and then from the 800 EzScan program "Copy Current Configuration to Scanner SD Card.
It appears that you can just copy the V folder CDAT files directly into the root of the SD Card. The program sees them, won't have a radio until Monday to test.