INSTRUCTIONS ON USING SAVE FILES FOR GTA III:
1. Download your savegame file (choose any savegame from the game beginning).
2. Uzip file using WinZip or the other similar software.
3. File GTA3sf1.b put in your "GTA3 User Files" folder which should be in your documents folder (for example: "C:\Documents and Settings\Your Name\My Documents")
4. Start your game and load first savegame.
NOTE: if you have a brand new game installation (which means you didn't play game before using downloaded savegame), it is recommended to start the game, and exit right after the first mission starts. Do this before following the instructions above. This will create necessary files within the game save directory.