Transfering my Check Off list from mac to mac

I had 3.6 installed on my G4 powerbook and had to backup, wipe and reinstall. Now I'm on Tiger and have installed the latest Check Off and I just can't seem to figure out how to transfer my list over. I couldn't find anything in my Library for Check Off and starting up the old one from my external backup brings up a blank slate.

Anything I can do? also, I know there's the export function, but how about an import function so next time I have to switch computers I can to a little export/import?

Thanks