If you can see the foldrs but nothing in them then you are viewing a Poser content folder as a DAZ|Studio content folder or vice versa. My guess is, from your description, that you have selected the folder 9probably at the wrong level - you need the folder that holds the Runtime folder) as a D|S content directory when it's actually Poser content: in Edit>Preferences>Directories you use the button at the top to select which type of content folder you are adding.