A lot of my downloaded stuff I unzip as I need it. If there's a problem, I usually IM the creator. It might be months before I actually use the items, though. I did have a bad experience with one person - a vendor at that - who insisted it was just my computer. (No, I won't name names.) The MAT files didn't work properly: they didn't put in the settings for the eyebrows. I even re-downloaded it in case it was a corrupt file. I looked at the MAT file itself and saw the mistake. I IM'ed the vendor who said none of their testers had any problems and it was just me. (I was willing to send the corrected MAT file to them to save everyone some time.) I also found problems with the Pose files - they screwed up the figure it you didn't use their .cr2 because it saved the morphs to the pose file. Again, the response was that it was obviously just me. (It didn't seem to occur to them that their testers might not have tried the poses with anything other than their .cr2 file. Yes, I used the correct base model the .cr2 came from.) Thankfully, the MAT problem was easy to fix, and I just don't use the poses. I bought the package for the textures, so losing the poses wasn't a big loss, but it has soured me a bit on their stuff, and on contacting people about problems.