In order to become fully integrated into the ES Development Team, you should be in the team's Dropbox account, have an account on Feng, and be a member of the community forums.

Dropbox: message one of the heads for an invite to Dropbox.

Feng: message Kage Musha in order to get/access your Feng Office account.

Forums: make an account here: http://www.eternal-silence.net/forums/index.php