I don't have direct contact to him, but by doing some serch I found next information which might come in helpfull.

Back in 2005 Will wrote a short news post about him and his tools:
http://www.pascalgamedevelopment.com...ighlight=Carad
So asking Will might be a god idea.

And by doing a google search for his tools I found one of his post at OpenGL.org forum. If you are registred there you might even get his E-Mail information or maybe send PM. Most forums send E-Mail notification when you recieve PM message.
http://www.opengl.org/discussion_boa...0622-BaseGraph