With due respects - I would suggest that you ignore the above linked document which is from 2003 and use this one directly from the FAA website which is current and shows that Flight Safety is the place you are looking for.
http://www.faa.gov/training_testing/...st_centers.pdf
CATS and Lasergrade are the two designated companies who are authorized to conduct the testing. The questions are downloaded directly from the FAA's bank.
The only difference is slight in terms of the presentation.