Description
Download the latest version of eZ Publish Community Version from share.ez.no (http://share.ez.no/downloads/downloads/ez-publish-community-project-2013.05) and when choosing the Site package you'll notice that it's fetching the wrong package version.
The RemotePackagesIndexURL, inside ezpublish_legacy/settings/packages.ini is pointing to http://packages.ez.no/ezpublish/5.0/5.0.0/ when it should indeed point to http://packages.ez.no/ezpublish/5.1/5.1.0/