What I do is prepare a set of folders within My Documents that match the Poser folder layout. I then copy the files that make up the prop, or figure into them. I then right click the Runtime folder to bring up the menu shown here. Selecting "Add to Runtime.zip" creates the archive with all the folder info in place. The zip file in this instance is placed in "000 Poser file prep". I then change the zip file name to suit.