Hey, I have several books on learning Maya 7. Each book contains a dvd with files and Maya Ple. When I try and install this on mac ( and yes,it works for mac) I get asked to give a software key. To obtain this key, I have to register. But whenever I do this, I end up getting the page to download the trial of Maya 9. Is there anyone who can help me with a software key or tell me how to find it. It would be a real shame and a waste of money if I can never use my books again. Thanks, Sophie