Once you upgrade ezDesktop from 1.x to 2.x you will be required to select the in-app purchases you made previously with your iTunes account.  You will NOT be charged for this in-app purchase if you had bought it before as all upgrades are FREE.  This is a limitation of the Apple iTunes store and after the upgrade it requires you to purchase the in-app items. 

Here's a detailed description on how to do it and what you will see once you BUY NOW the in app purchases you've already made.

http://support.apple.com/kb/ht2519