I have also gone though that practice test. Make sure you know how to do the problems in the middle and end. The first 1/3 of that test is very simple, while the second part is more difficult. If you are going to spent the $175 to take the first exam I would buy
this.
It is the best study book on the market and the one my university uses. To tell you the truth I don't know what all of the future exams cover. The first two are over probability and financial mathmatics (stuff I learned in my Finance 332, and 442 courses).
EDIT: if you want to take the first exam in February, the due date is Dec 15th. The application must be recieved by the 15th so you would have to fill it out and overnight it to them tomorrow.
exam 1 info