Well I know that there are some CCIII maps out there that are based on the earth. I actually think one of the Oerth / Greyhawk maps is based on a migrated continent version of earth. It would be pretty easy to adapt that one.

Importing a BMP image to use as a base for CCIII is pretty handy. I have done it with a map I had on a 20 X 20 inch I had hand drawn.

I don't have any info on FT, I've never looked at that program.