Need help finding Document on TDN..Help:)

I found once a chart that had a breakdown of the engine, and how one system relates to another. Or maybe it was the dependencies or something, i cant remember and my coder and I have been combing TDN and GG site and i cant find it, and my coder is asking for how one system relates to another especially on how the networking is setup. Im not sure really what he is looking specifically for but, we are one of those groups who have Titas/MMOkit and are setting up a master server and such, and even though it's running there are a couple of issues getting it working or the network/Internet, he thinks the problem is in the scripts and he is just missing it, and i sort of agree. If i could just find the chart i saw before I think its what he wants, but any suggestion would be appreciated, thank in advance!!

Bobby