magic lens filters

I have a canon rebel xti with the tokina 10-17 fisheye lens housed in a ikelite housing with 6" dome port. Do you know of any body who was able to apply the magic filter to the tokina fisheye lens for canon and make it work. If so please provide pictures/details of how this was done thanks.

There is info here (scroll down a bit):

http://www.magic-filters.com/tokina.html

It is a bit fiddly on the Canon fit Tokina, but works fine.

Alex