There is not (yet) much information on the testing since it will not be implemented for some time.
"What is the best estimate for when the new regulations will be implemented? (posted 1/22/10)
Sept. 1, 2010, is the current target date for an on-line registration system and Jan. 1, 2011, is the current target date for requiring all paid signing preparers to be registered and to use a Preparer Tax Identification Number (PTIN). Final determination of these dates is dependent on many factors and will be widely publicized as soon as available.
Testing will not be implemented until after registration and mandatory PTIN usage are in place."
Even though the procedures for taking the tests are yet to be determined there are some that are claiming that their course will prepare you, such as at http://www.theincometaxschool.com/resources/tax-industry-news/tax-preparer-regulations
"The Income Tax School Comprehensive Individual Tax Course cover all topics that will be on the first two IRS tests."
One source that I use to get current news is a blog, such as the one at http://www.rothcpa.com/archives/005990.php since they do post items very soon after they occur (such as the comments on that blog the day after testimony was given).
The home page for that blog is http://www.rothcpa.com/taxupdates.php
I hope that the sources provided are what you need even though as of yet there is not much information since the testing will not be implemented for more than one year from now.
Thank you for the opportunity to be of service.