You must render with "Ray Tracing" and "Cast Shadows" option turned on. If these options are not turned on, you will not be able to see the shadows.
This product is strictly not compatible with Daz Studio!
This product was not tested in Poser 4, 5, Daz Studio.
This product was tested in Poser 6 but the lights are not fully compatible. Especialy PureRender009.lt2