Stumpy try this link.
It is very similar to the Micropat testing as used by BA and was the best £50 i ever spent.
http://www.cockpitweb.com/pilottest.html
Big Grecian to apoint i have to disagree with your assertion as i improved my scores in my BA interview this year as opposed to last year.
The above programme helped me to increase my capacity for the most evil of tests which is at the end of the Micropat where you're trying to identify shapes colours and numbers while trying to keep an errant flight director cross haired and thrown in for good measure numbers counting down in different steps and having to identify when the step change happens ALL at the same time.
Good luck
