The runtime folder is specifically for Poser content, i.e., content that is in the Poser file format, like CR2, PZ2, PP2 etc etc. These files, will not be seen by DS unless they are inside a Poser Runtime folder.
Is it the Mary INJ and REM files you are reffering to?
Is this what you were enquiring about?
If you have any Poser content previously installed, then you should have (inside the runtime folder) Geometries and Libraries and Textures. Inside the Libraries folder, there should be Character, Pose, Props and several others. If you don’t have any Poser content installed, then simply create a folder inside the runtime folder, called Libraries and then another one inside that called ‘Pose’ and drop the INJ and REM files in there.
I went back through the thread, and you did not say what charcter these pose files are for? They may or may not work with Genesis.