It looks like we need to create a tutorial on DAZ library and asset structure. Basicly, the data folder is like a geometry folder. But, the data folder hold morphs, UV info, and other stuff. A Content folder contains a Runtime folder. I have a Poser 11, Poser Pro 2014, Poser Pro 2012, and Poser 8 Content folders. Daz Studio puts its stuff into the Content folder.

For DSON Importer to work well, both Poser and Daz Studio need to be mapped to the same Content/Runtime. Here is a link to Daz Studio's guide on the subject http://docs.daz3d.com/doku.php/public/software/dazstudio/4/userguide/finding_loading_and_organizing_content/tutorials/mapping_directories/start