ok, not giving them away is probabaly well enough covered, here's what I do.

I create a temp directory on the hard drive, then point the zip file to unzip there. Usually, you'll get directories such as
Geometries
Textures
Characters
Props
etc.

Each of these has a corresponding fold/directory in Poser itself. I open 2 windows (I'm lazy...;); 1 with the Poser directories, and 1 pointing to the directories created by the zip file.

Copy Geometries to Geometries, Props to Props, Textures to Textures, etc.
Most times, that will work.

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)