QT Player dialog

I am writing a short script for QuickTime Player and I was just wondering how would you deal using Applescript with the initial dialog which is displayed when you launch QuickTime Player for the first time and you are not registered, a dialog is displayed asking you if you wish to ‘Get QuickTime Pro’ and has 3 buttons available to user. I have tried the UI Browser and it is unable to see any of these buttons or anything in the window, so I was wondering how would you deal with this dialog using AppleScript?