I'm thinking of buying a macbook that's still in the box, but from a private party. The macbook in question was purchased on a corporate purchase plan. Will I be able buy an apple care plan and use it with this computer? I was thinking of going in to the genius bar and asking them, but I wanted to take what information about the computer in question they would need to tell me if it were eligible. What information do they need about the computer to sign up for applecare?