The old activation servers were pulled off-line a while ago. You can now use the serial numbers found on this page to activate your Macromedia 2004 products:
Thanks so much! the person I got on the chat site was totally useless.
I was able to successfully install Fireworks and am now trying to install Dreamweaver. The version MX WIN E (education) is not the list above - is there another way to install/register it?
I suppose you could download the old version at oldversion.com:
This is a trusted and safe site: https://en.wikipedia.org/wiki/OldVersion.com
Adobe used to host these older version on their ftp server, but that is no longer the case, unfortunately.