Quote - http://docs.daz3d.com/doku.php/public/software/dson_importer/poser/userguide/dson_installation_requirements/tutorials/dson_installation/start

Read this link very carefully before attempting to install any Genesis 2 models (M6 is a morph of G2) and content and make sure you are absolutely clear about how to approach this type of installation.  This is not your typical installation from the past and any screw up will just frustrate the heck out of you.  Joepublic has written several tutes in the forum; try to find those and read those through very carefully.

It actually wouldn't be a bad idea to make one of those threads a sticky.