Objects - unzip the .iff files to The Sims/Download/ Walls - unzip .wll files into The Sims/Gamedata/Walls/ Floors - unzip .flr files into The Sims/Gamedata/Floors/ Roofs - unzip .bmp files into The Sims/Gamedata/Roofs/ Houses - unzip .iff file into The Sims/Userdata/House/ Skins - unzip .skn .cmx .bmp into The Sims/Gamedata/Skins/