If there isn't a readme then you'll have to work it out from what you get. Plain image files are textures or backgrounds - you're going to have to load them by hand anyway (via the Surfaces palette or Edit>Backdrop) so just put them where it's convenient, a subfolder of the Runtimetextures being the obvious choice. OBJ file plus textures probably make a prop - either put them in a folder together, or put the textures in a RuntimeTextures folder and the OBJ somewhere else (RuntimeGeoemtries, perhaps, though if you load it into D|S and save it as a Scene file you will not need to keep the OBJ around - D|S stores its own geometry files: don't delete your zip though, incase you need to reload it). CR2 files go in a subfolder of the characters folder, pz2 files in a subfolder of the Pose folder, pp2 ditto props, hr2 ditto Hair, hd2 ditto hand, fc2 ditto Face, lt2 lights, cm2 cameras. There should be RSR and/or PNG files with the same name as the xx2 file that go with them, to provide the thumbnail. Other image files are textures, and OBJ files are the geometry. To work out where to put them open the xx2 file in Notepad and look for the path reference, which will usually be something like ":Runtime:Textures:RBH tex:RBHTable.jpg" meaning that RBHTable.jpg is to be put in RuntimeTexturesRBH tex