Someone ate the content you were looking for.
Here are some shortcuts to your most likely destinations:
Go to the Homepage to start learning more about Mail Archiver X.
Or go to the Tour to get more information how to archive your mail from Entourage, Eudora, Mail, Postbox, Powermail and Thunderbird. And how to export the mail - if you want - to Evernote, mbox, pdf and other formats.
Or try the download directory at downloads to look for a more current release or a special test version.