How to activate: NO "Activate/Register Tab" available

Hello
I just downloaded and I am ready to actrvate.
I should "Go to the Activate/Register Tab and click on “Activate Now”, but my version of the PDF Architect (1.0.52.8917) does not display the same tabs as the activation instructions.
My available tabs stop at “HELP” and NO “Modules and Packages” or “Activate/Register” tab exists…how can I activate??

Who can help me getting off this bad start?

Thanks