I took the compass in October. I was all worked up and nervous over it. It's really not bad at all. I do recommend brushing up on pre-algebra and algebra for the math portion.
www.math.com is what I used. On the math part your computer will continue to give you questions as long as you are answering them correctly, after you miss a certain number of questions the math portion will turn off and take you to the next portion with was reading I believe. For the reading portion it will give you a couple of passages to read and then after each passage it will ask 4-6 questions. This was the most important part to me because my school requires atleast a 76% on it.
You are allowed to use calculators on the math portion also. Just be sure to practice the math and you should be fine.
Good luck!
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