An older copy is available here:
curl -O http://dl1.centos-webpanel.com/files/cwp/sql/root_cwp.sql
You could edit the install script so as to reference this SQL source instead so as to complete the installation.
EDIT: Bing's cached copy indicates that the dl1 linked file is the same as the static.cdn version of the root_cwp.sql file. So my suggestion is a valid workaround until the devs get this sorted.