Hi,
I am not sure I understand you question.
The latest EZdrummer version is 2.1.1 and the Hip Hop! EZX is at 1.0.0.
The bigger problem here would be that you do not have an EZdrummer 2 product (nor Superior 2) registered to your account.
If you have several accounts and EZdrummer 2 is registered to another account, please contact support via the FAQ to help merge you accounts. Otherwise you will not be able to use and Authorize your EZX.