1. copy folders and files from "1.Install" to your main game folder.
2. Install desired preset:
Copy and replace SweetFX_settings.txt file in game dir with desired preset from "2.Cromm Cruac's presets*" folder.
OR
Open SweetFX_preset.txt in game dir and change the path to desired preset in SweetFXPresets folder. E.g. #include "SweetFXPresetsbalanced.txt"