The inside_the_sfg.zip file you have requested: Map Mods / Inside the San Fierro Garage - 1.7mb is not available. Perhaps try browsing all files for the game Grand Theft Auto: San Andreas and upload any files you want to share or are missing. This is the only information we could locate:
Here is a modification showing the inside of San Fierro Garage. This modificaton will give CJ a car with his name on the Licence plate, and will allow you to go into your girlfriends houses, along with the garage within San Fierro in GTA San Andreas.Please note that this file will overwrite your "Main.scm" file, it is highly recommended that you back up this file and any other files to save yourself from having to reinstalling the game.