It allows v1.01 executables to seamlessly load v1.0 saves and vice versa.
However, if you are using the v1.01 version or have the game installed from a disc, the path might differ. Sometimes it can be located in the following spots: gta san andreas v 1.01 save game
By understanding the version differences and utilizing community downgraders, you can easily bypass the restrictions of the v1.01 patch and enjoy any completed storyline save file you desire. It allows v1