Looking for users for a controlled experience

Hi all

We would like to evaluate a visualization that we developed. The  
visualization's goal
is to support the understanding of package and we would like to get  
some feedback on end-users.
For our experience we are using the Squeak compiler.
We know that everybody is busy but this would help us a lot. (note  
that you need to use VisualWorks 7.5
to run the experience.)
Everything is described at: http://lseg.free.fr/PackageBlueprints/

Thanks in advance for your time
Stef and math