How do you activate key????

Hi guys, i jsut downloaded parallels desktop 8 and it asks for a activation key, i was looking around and it should say at the right corner i believe "get key" but it never said that. ive been checking my email for a key nothing is there? Help please!!

 

You can get a trial key sent to email at http://www.parallels.com/trialdownload/pd8

Steve