Thanks, but I solved this questions a few days ago.
I aware how to find the "Puzzpack" games, but I meant the games running on the MirageOS.
By the way, this is the solution for who have the same question of mine:
"WHERE TO FIND THE GAMES DOWNLOADED FROM THIS SITE, WHICH ARE RUNNING ON THE PARTICULAR "OPERATING SYSTEM" (such as Mirage OS. in fact, Mirage OS is an app.)
1. Drop the game files to the TI-Connect icon;
2. After done, go to APPS > Mirage OS
3. Find your game and enjoy it!