I've been trying to make it work for a week and finally it works
1.Install SRT3
2.Install the lods mod
3.Download
http://world-gta.net 's update on project oblivion 2010
3.1
http://world-gta.net/gta-san-andreas/total...download/10/351 Download and unrar
3.2 using img editor bulk replace the dff and col and then the thd folder after that import the add folder
3.3go to ROOT folder nad copy gtasa.exe data and models NOTHING ELSE!!!!!!!!!!
3.4paste in gta root
4.enjoy this game
some of po's trees now have better cols thanks to lod mod (redwood tree which has to be most common in the game)