HOW TO USE CODE TOOLS - Code Tools only support saves that were made with the original SCM. Once you have saved your game, backup the main.scm in your /data/script/ folder by renaming it to something like mainORIGINAL.scm. Put the main.scm from the associated Code Tool in its place and load your savegame. This CAN be done while SA is running. Once you are finished with the benefits of the Code Tool, save your game, restore your main.scm, and reload the save you just made. Code Tools such as Pillager do not require you to revert back to the original main.scm.
Mission Passers - Any mission it supports can be passed simply by starting it. Currently supports v1 and v2 and is in the process of being developed to ultimately encompass any task in SA that it can. Supported mission list below.*
Pillager v1 - Reveals ingame the location of any tags, horseshoes, or oysters YOU have left while also adding visibility to all photo op locations. THIS TOOL IS NOT A CHEAT.
Rebirth v1 - Like Trip Skip. But instead of taking you from point A to point B, it instead takes you from outside the mission to back to where it started. Useful for missions like the Chiliad Challenge or Wrong Side Of The Tracks where failure can leave you very far away from its starting point. Does not support all missions.
* List of missions currently supported by Mission Passers:
-Big Smoke (first mission)
-Cesar Vialpando (Sweet's lowrider competition)
-Robbing Uncle Sam
ALL of Big Smoke's missions
-Life's A Beach
-Wear Flowers In Your Hair
-Back To School
-Learning To Fly
-End Of The Line (1, 2, and 3)
ALL R3 missions.
As a side not to those that might consider this redundant: It has been discussed and this was the resolution arrived upon. Feel free to visit the VC and GTA3 sections for further verification.