Hi There!
Since you made your purchase in 2008 your access is most likely expired. If you received access by purchasing a book you should've had access to the online content for 1 year from purchase or registration of the guide. You can receive additional access to the exams by purchasing online access or another strategy guide. You'll then be able to reset your exam and take more tests. Here's a link to our online store's pages for CAT access and Strategy Guides.
http://www.manhattangmat.com/storeitems ... 57&catid=1http://www.manhattangmat.com/storeitems ... ItemID=583Please feel free to contact student services at 800-576-4628 for additional assistance.
Kevaughn
Dept. of Student Services