I am quite new and I acquired Cave-z from renderosity. Where do I put the OBJ MTL and JPG files in the daz folders to make them work? 
Any help would be greatly appreciated
Granic

Did it come with Poser files - a pp2 or .cr2 file, most likely? If not then it's best to leave everything in a single folder (assuming that's how it comes) and then use File>Import to load the OBJ (which should load its textures too). If that doesn't work, do you have a link to the product so we can see the readme file?

Attached Link: DAZ 3D File Loactions Tutorial

Something wrong with the above link

Using obj files not set up for poser or DS is slightly different than a normal install. You should be able to simply unzip the file into any file you want. Say a Cave-z file in studio or documents or where ever you will remember you put it. Then your going to go into daz and import the obj. Select the obj you want to import and it will ask you for a size to open the object in daz as. I'd try the poser size first and see if its to massive. If it is delete it and try again. You may also per the readme need to scale it more or move it around to get it properly placed. With luck the Mtl file (An object material file. It is part of the object in a way so should be called automatically) will go ahead and tell daz which textures to put on where. If none of this works you can PM me here and I will try and help more.

After you have the objects in daz you may want to save them as a scene. It will save the objects and the proper materials together. If they are all you have loaded at the time and you open that scene then they will load into any other scene you may be working on correctly.