product key migration assistant

Hi all,

I purchased a new Macbook pro( OS Lion) and used migration assistant to migrate my files form (OS Snow Leopard) this worked really well. The only problem is that my office 2011 requires me to key in my product key again. I cant find the disk with the sleeve with the key number on it but the box says it covers two machines at home so I should have no problem. Does any one know how I can find my product key on my snow leopard Mac so I can use office 2011 on my new mac.

Would this be something covered under apple care?

Regards

Happyhills