I just fix my macbook air because it was kernel panic. They changed the hard drive. I could not back up with Time Machine, because it did not work and I had over Adobe creative suite 5 design premium student. But I finished my studies last year and I'd li

I just fix my macbook air because it was kernel panic. They changed the hard drive. I could not back up with Time Machine, because it did not work and I had over Adobe creative suite 5 design premium student. But I finished my studies last year and I'd like to know how to get the serial number for me to reinstall Adobe creative suite 5 design premium when I am no longer study because I would still like the used? It is not fair if I do anymore because I really need.