How to invoke Bunkspeed in Rhino

[benjy]

When I installed Bunkspeed, it imbedded itself into Rhino.  I know this because when I invoke Rhino, the Material Library Window of Bunkspeed shows itself for a short time and also Bunkspeed is listed under Renderers in the Render pull down menu.
I know if I import a file drawn in another cad program I need to import it as an iges or stp file, but I need to know how to get Bunkspeed itself working, and have the Options Box show on the screen, to get started.
Thank you,
Benjy