The only one I have that you have listed is golden palace. That seems to have a normal install, so I don't know why you have a problem with it if you added it into your normal library. The textures are in runtime, which is where Poser originally put all the textures, with newer DAZ installs they are either under /data or /runtime/textures.
So what you need to do is go to your /runtime/textures folder in windows explorer (not inside of DAZ itself) and see if runtime/textures/Meipex/M_GoldenPalace exists. If it doesn't, that's what your problem is, and you need to go back to your installation files and put them there.
If you are getting a weird box around the genital area it means the geometry is missing also. That would be under data. So check your installation zip, and make sure all the files there installed to where you need them.
My guess is that you have an odd directory in there, and you can get to the scripts for adding the parts, but since the data and runtime folders are not where they should be (in the root of your library), the scripts can't find them in the relative path.
So if you have a directory in your library that has a folder that says something like "Golden-Palace-for_G3F" and you are getting to the scripts there, and the data and runtime folders are under that folder also, that's why it's not working.
I imagine you have the same issues with your other products.
They make clothes for V4? Why??