I told you install Alice LUA Loader
. copy devil mod's file into "GTA-IV\Grand Theft Auto IV\Alice"
Note 1: for using .lua mods you need Alice LUA Loader, so you should copy the mod's file in "GTA-IV\Grand Theft Auto IV\Alice"
Note 2: for using .asi mods you must have ASI Loader
, you should copy and paste the mod's file in gta-iv directory