Download and run the setup_gopher2006.exe from http://www.getgopher.com/2006 . Then you need to copy the database file from the old computer to the new one. You can use the File | Backup Database feature to backup to a 3.5" or USB flash drive. Or you can manually copy the actual GDB database file to a CD or send it over your network. The location of the database file (.GDB) file can be found on the Options | Database tab.
I am glad you guys dont do it like microsoft, and the software is dedicated to only 1 machine. What if I buy a laptop this spring for my truck, would I be able to run it on both computers, or only the one?