Kangaroo Box Collision/Clustering - Cannot get to work

Hello grasshopper-gurus,

I've been struggling with this for a while now, and I have perused the forum and looked at examples like the ones linked here: http://www.grasshopper3d.com/group/kangaroo/forum/topics/box-collid...

The basic issue is that I am trying to get a set of boxes of variable sizes clustered all together, much like the videos by Daniel Piker: http://spacesymmetrystructure.wordpress.com/2012/12/30/orthogonal-c...

Yet I cannot get the box collide command to work and prevent the boxes from passing through each other. Does anyone have any idea on how to fix this?

Thank you and looking forward to your response!

-Moh