IMPORTANT NOTE: To save your progress on the emulated games hover over the game screen and click the disk icon or the Save State button before you close the game. When you reopen the game click the folder icon or the Load State button and open the saved state that you downloaded earlier.
P.S: If you are getting a network error for the emulated games it is because the game is more than 20mb and has to use a different encrypter which your school probably blocked sorry :(