There are a couple of ways to get Dreamlight's DAZ Only products into Poser.  There is D3D's DSF toolbox sold at DAZ.  If you don't want to spend money over and above the model (buy from DAZ that way if it doesn't work you can return it).  D3D has a DSON loader script for free on his site.  You will need to have DSON importer for Poser from DAZ installed as well.  Launch the script and locate the file.  It should load.  I used it on Dreamlight's Destroyed City model.  That model loaded untextured.  I had to manually apply the textures and tweak them for Poser.  I won't say it isn't doesn't take a bit of time and effort but if you really need the model, it's can be worth it.  Once you have the model textured and adjusted, save to your library and you can use it as you use any Poser model.