killua - That might give me some hope then. Awaiting friday with grave anxiety.
matichk - The tests were very much like I expected them. They resemble most IQ-tests you can find on the internet and the basic principles are pretty much the same. Obviously these test shouldn't be easy, but I think it all comes down to whether or not you have a knack for distinguishing certain shapes and colors, coordinating mental reflexes and also applying arbitrary rule bending - a great part of the tests were focused on this.
Whatever you do, don't start giving up if you find it very difficult and try to relax as much as you can. At one part of the test I ran out of time and left 8 (!) questions unanswered - still I managed to pass the test.
I'm sure you've read about the Ball test. Here is an interesting flash game that should give you a hint of how your multitasking skills are.
Play Multitask, a free online game on Kongregate
I got a score of 350. Although it took 15 tries...practice makes perfect.
By the way, if you have any other questions, don't hesitate to ask.