After Installing ML on the second Mac
After downloading and installing OS X Mountain Lion on a second macbook pro at home which belongs to my brother and earlier he had been using another apple ID for it. After he installed the OS X ML, I'm unable to find the ML in my purchases at the app store, just wondering in case that I might need to re download the ML in future, do I have to make another payment aa app store does not have the ML in my purchase list any more.
MacBook Pro (13-inch Late 2011), OS X Mountain Lion