First, there's a "readme" in each tools of how to use it, so i'm not gonna tell of how to use it here, and don't ask
Tools to install mods:GGMMused for installing custom textures, read the readme on the download file of how to use it
IMGTOOLsame like GGMM but in imgtool you must do it manually
SAMIthis is san andreas mod installer, i never use it though, so just read the readme
ZMODELERthis is to edit the textures of gta sa, use this if you want to make a custom textures mod like vehicles,peds,builindgs,etc
TXDWORKSHOPuse this to change the texture too
PLEASE REPORT BROKEN LINKS