That 2007 edition is fairly out of date nowadays - but it might get you through - There have been significant changes that will cause you to answer the questions incorrectly especially with regards to part 121 and 125 operations.
The current course is now totally online at
Stonybrook Training - Home (note the spelling is different)
I've finally put the course online - also putting other subjects online too - rather slowly so don't hold your breath PPL first then CPL etc.