SRt3 it's a San Andreas Mod, that retextures the entire map. It is at least the initial name of the project which the goal is to retexture any piece/object of San Andreas by textures of much higher quality.
Finally I manage to make a tutorial that shows how to install SRt3 over San Andreas using IMG Manager Tool. There are three basic parts: SRt3, next is Draw Distance as .Lod Mod and the last one shows how to make SRt3 & .Lod Mod to work with SA-MP.
SRt3 2012 is the newest version, yet is not the final one. What is actually new: Mipmaps & Draw Distance Mod (.Lod Mod). I put everything that was new in one single. A few more days to wait and Srt3 2012 will be released.