Download Big Fish Games from the Game Manager.
Install the games.
Use the keygen to register the game
MOve the games out of the installed directory.
Close the game Manager
Reopen the Game Manager.
You will now have 0 games.
Move the games back into the installed directory.
In the Game Manager go to Options, Downloads, Find Games Start
It will find all the installed Games and update any that need updating,
If a screen appears to login to an account just press X on it.