Upgrading My Encarta Encyclopedia 99

[Batro49]

To Who this my concern,
        I have tried my hardest to up grade my Encarta Encyclopedia. But, I 
never could find a way to do it,even though, I followed all of the 
instructions.
      Would you please, try to help me out. 
                                                                              
               Yours Sincerly, 
 
                                                                              
                Batro49