For SweetFX & FXAA you need to install Asi Loader and ScriptHook.dll Compatible with your game version

I putted them in archive if they didn't worked you should download Compatible virsions for your game


Install:
1.put "ScriptHook.dll" & "dsound.dll" in yor game root
2.put all files from SweetFX and FXAA folder to yor game root
3.FXAA is already actived !!!
4.In SweetFX's readme it says how to Active it and more...

(Maybe SweetFX and FXAA couldn't work Properly with under 1.0.4.0 patches)