Exactly what was in the archive I downloaded and extracted to them. All folders has ModInfo.xml and some dll files like SMXcore.dll, GearsAPI.dll in SMX core, a lot of them contains a Config folder, SMXcore has a lot of textures and stuffs. Basically what I see, everything seems correct, but I can't provide you a complete filelist, because it is too long. I re-extracted the archives, it asked me a lot of files to overwrite, I let it do, still no change.
I do not know how to prove you I just followed the instructions for the mods... I downloaded the corresponding archives and extracted them with Total Commander to my Mods folder next to the 7daystodie.exe. If we assume the files are correct, what else could be wrong?