Your subscription should have been automatically activated when you completed your purchase. If you previously used a trial version, and that expired trial is keeping you from opening the software, it is possible that the trial was registered using a different email address than the one associated with your order. To correct that, please follow the steps below:
Windows
*Make sure the software is closed, including any registration windows
*Press and hold Shift + the Windows key and launch the software
*In the login window that appears, enter the login information associated with your purchase
Mac OS X
*Make sure the software is closed, including any registration windows
*Press and hold Shift + Cmd and launch the software
*In the login window that appears, enter the login information associated with your purchase
*After these steps have been completed, the software should activate correctly, and you should be able to use it again.