Anyone familiar with Spatial Imagery IQ/ability tests?

As above - does anyone know where I can find tests to judge someone's spatial imagery/pattern recognition abilities objectively? IIRC the Mensa IQ test has one, does anyone know if it's on the web?

 

Here is my Google search results:

http://www.google.com/search?q=Spat...d=ie7&rls=com.microsoft:en-US&ie=utf8&oe=utf8

 

Dang... that Google really works. We should tell people about it.

 

Ahh, google led me back here.