I noticed this on their website for the product:

"Notes: This product includes scripts to apply the poses. In order to use the scripts, have BOTH relevant figures (Genesis 8 Male or Female) selected in the Scene Pane and then double-click the desired "Pose." The dialog box that appears will allow you also to mirror the pose, include/exclude the figures' expressions, or only apply partial (lower/upper body) poses. If you choose to let the script also group the figures for you, the first figure you select will determine the final position/orientation of the grouped figures. The script will also work when a single figure is selected, allowing you to specify which pose to use from the pair."

Did you follow those instructions?