Loosing old info on a forum is never really nice, yet I am a member to quite a couple of forums, mostly motorcycle related, and whenever you can't find info, you merely post a new thread. You either get someone who has a link to the info or someone who tells you what you need to know.
A side question, with the Suzuki DR650SE, there is a dedicated Wiki page...is this true for the Arduino? Could be something to look into to capture information which then frees the forum to be updated and changed in the future.