I found this on guidancenet.com. If you have an upcoming test, make sure you remember this:

"To better serve you, Peterson's will be upgrading its Web servers the weekend of August 4 and 5. Due to this scheduled enhancement, this site will be unavailable beginning Friday August 3rd at 6:00 PM Eastern Standard Time and is expected to resume operation, Monday morning August 6th. Please keep this in mind when scheduling your activities. If you have any questions or concerns, please contact technical support (option #4) at 1.800.338.3282."