Horsefeathers7_Readme.txt and horsefeathers7.jpg | Anywhere you want |
All .pz2 and associated .rsr files | Poser4\Runtime\libraries\Pose\Horsefeathers |
All .pp2 and associated .rsr files | Poser4\Runtime\libraries\Props\Horsefeathers |
All other .jpg files | Poser4\Runtime\textures\HaiGan\Horsefeathers\Morphtail |