Branching to a new discussion.
Ewam37101537 I apologize for the confusion. The activation server for Creative Suite 3 has not shut down. In fact it is the same server being currently utilized for Creative Cloud and Document Cloud memberships.
You can download the installation files for Creative Suite 3 at Download Adobe Creative Suite 3 products . If you need to locate your registered serial number then I would recommend reviewing Find your Adobe product serial number quickly.
Finally you indicated that our support team told you that the CS3 server was shut down. Do you have a case number so that I can review the interaction?