You can print rosters from the "AP Report Center" located in the "User Menu". This menu will not be visible unless you are logged in. The report center is unique to every high school and you will only be able to access your own school's reports.
If you would like all of the rosters at one time, download the MS Word formatted file that contains all of the rosters. Using this document will allow you to cut and paste into email to send each teacher their appropriate rosters.