http://www.wondercutruler.com/
have you checked out their website?
ANd, if I am not mistaken, Quiltville.com has a few quilts on her site that uses the wondercut ruler.
I own it, but have never worked with it ... one of these days I am going to open a shop to sell all the tools I have never gotten to.
Don't despair - - I know I am NOT alone! LOL