Here's the Download-Link for the RC9/UK/Europe Version of Cupcake. It's the official Version for a manual Update ...
http://android.clients.google.com/updates/signed-CRB17-from-TMI-RC9-eu.17667e06.zip
http://android.clients.google.com/updates/signed-CRB17-from-TMI-RC9-eu.17667e06.zip