You may try sending private message on the site by typing "/pm 1" without " or you can you use the /who and you'll see many usernames but ethan_nx(1) is usually on the first line then you can click his profile to send a private message. His bitcointalk account is https://bitcointalk.org/index.php?action=profile;u=917344 but he is not active since two months ago so I think sending him private message through the website is much more better.