your right yo need to update the file paths for the textures. Open up the schlong on outfit studio and right click the mesh to show its properties then click on textures and update the file paths.  You can do this by looking through the textures of MNC and finding the wolf penis or something textures and copying the paths into the mesh.  I'm not sure if I am allowed but I've uploaded mesh with the correct file paths you just need to overwrite it with the mesh in the shape data fol