I found it much easier to unzip the files, then move the file contents to the various folders in the Runtime. Yes it does take more time, but for me, in the long run I had a lot more success.

Also, be sure the files you want to use in DAZ are DAZ compatible. I found out the hard way that not all Poser files will work with DAZ. If you are not sure, or the file description, or the Readme inside the file does not say DAZ compatible, it may not be.