Code 80 is an Adobe DRM Error: Network Connection Error. Please try again.
This is normally a timeout error from Adobe. Many people have experienced Adobe Server problems. I would try again later.
You can bypass the Registration process and start enjoying your device. Here's how:
http://www.youtube.com/watch?v=DjbZP8ckmKI
You can try registering later by choosing Settings, Edge Settings, and Register This Entourage Edge Device