Most 'important' Sailfish features are already included in the Makerware (=Flashforge) firmware.
The reason why Makerware is still 'missing' some features is because the firmware-space on the PCB is limited, and Makerware includes 'leveling help' and 'first run' scripts.

But since you have folder support, ditto printing, and no leveling help: you are running Sailfish.
If you want to use another firmware, that is possible.
See: http://www.makerbot.com/sailfish/install/
Same steps apply for installing other firmware.

If any other questions just ask away! And good luck with printing, show us what your progress if you want to!