[8FS_Bulau]

I can't see that you did anything wrong, in that case. If you started with a patched 4.08m game, then installed the ENG_Sound_Mod (plus wrapper and a/c installer), then the 4.09_Mod_b1m, then the switcher, you should be able to select 4.09b1m Mods On with the switcher, and all your previous mods should be available.

What Mods aren't working? Are their folders still in your MODS folder?