Open PAHud, click Help --> About and enter your registration code there and click 'ok'.
You can request a new copy of your registration code be sent to you from the following link:
Registration Issues - Need Registration CodeIf it does not work, please make sure all firewall or other software which could prevent PAHud.exe from accessing the internet is disabled. Then enable logging via the second set of instructions in this tutorial:
Tutorial: How to Create a Log File and attempt to register one more time.
If it fails, please create a
support request including the PAHud.log file and we will help you resolve your issue.