Objects (.iff): Place all downloaded objects, after unzipping, in the directory, The Sims> Downloads folder

Floors (.flr): Place all floor files, after unzipping, in the directory, The Sims> GameData> Floors

Walls (.wll): Place all wall files, after unzippping, in the directory, The Sims> GameData> Walls

Roofs (.bmp): Place all roof files, after unzipping, in the directory, The Sims> GameData> Roofs

Houses (.iff): Place all house files, after unzipping, in the directory, The Sims> UserData> Houses *Note, in Livin' Large or House Party,the User Data also may have 1-5, PLace the house in the folder with the number of which neighborhood you want, so for example: If you want a house in neighborhood #3, then you will place it in the UserData3 folder.