Hi Steve, thank you for responding. Since I just installed the upgrade this morning, we are using 9.0D but up until then we used 9.0C. I did my close out last night without copying, so I am pleased to hear that the old data is still preserved after year end in the live dataset.
It sounds as though I don't have to copy the files anymore, (it was just a tradition that I carried on from the old AccPac days) But I am curious to know how I would access the previous years files without copying files.