You can transfer the info over, it'll just take some manual editing of files.
All the calibration data is in the TopoFusion.ini file (which if you've had TopoFusion for more than a few months should be in C:\Program Files\TopoFusion).
Open that file (in notepad, it's a text file), and find the section prefaced by [User Maps]. Copy everything up to the next [] header (it's [CustomWMS] in my file). The pathnames are there and obvious so you can edit those there, too.
Hope that helps. Shouldn't take too long to get all the data transfered. In the future we'll have an easier way to export / import calibration data.
Thanks.