ATC to AETC device migration

Hi, kind of a n00b question. I need to migrate from a EPM7128ATC144 to EPM7128AETC144 keeping the same pinout of course. Our board suppliers are kind of indiscriminate about which parts they put on the boards, aren't they great. I've looked through a lot of the docs and at the tutorials for Quartus and there is no clear instructions on doing this or even if it can be done. I looked at the Migrate section but I was not able to find my 7128ATC device as something I can migrate from. I have the .edf and a whole bunch of other files from the ATC compilation. Is there an easy way to do this or am I looking at a complete new compile for the AETC device. If that's the case can I specify the pinout with the .pin or .pinout file from the ATC compilation. If there is any specific docs on doing this I could be pointed at that would be great. Thanks

tomh