Again to those asking the question on which tests appear.
THERE IS NO FIXED FORMAT TO THE DLR TESTS.
Regarding ATTC. Save your money. If you look at
Pilotenboard.de :: DLR-Test, Lufthansa, AUA, ... :: Infos, Ausbildung, Erfahrungsberichte :: Index, you will see that there is no correlation between success and going on this course.
The Skytest software, in contrast is quite useful, but be careful of overusing it as the test format on the day is slightly different and there is a danger of becoming too accustomed to the voice / screen presentation used in Skytest.
KT