A new email from the future provides information on the upcoming chat with TSO.
YourFutureIsMyPast sent the following email on March 6, 2009:
Subject: I have detected the location…
I expect T.S.O. to provide you with the date and time soon.
However, there's some puzzling to be done before you can enter the chat.
That's not the only puzzle, though.
PS. The location is secured by E.Y.E.'s neutrality, so I expect the chat session to be secure.
Your Friend From The Future
Using the Grid Row/Column system on the Codex image the message decodes into:
Leading to the Find A Way In Puzzle