Another Voronoi Q

Hello, My name is Carl Veith a Grad Student at Kent State University.  I am currently working in a digital studio were my project direction has led me to Voronoi.  I have made several different attempts to work with Voronoi in 3d but have failed.  My goal is to create something similar to http://www.grasshopper3d.com/photo/fnstamp-1/prev?context=user . I have tried Dimitries http://dimitrie.wordpress.com/2009/05/01/3d-voronoi-in-grasshopper/ but I just dont know enough about GH to get it to work.  I have been able to take a simple Voronoi example and create a box with segments in it however, i am going for the voids.  If anyone may have any suggestions all would be great.

Attached are what I have so far.