Client memory positions

In the file ProcessStream.cs, it gets a handle with the Client process and use ReadProcessMemory( m_Process, m_Position, p + offset, count, ref res ) to read "count" bytes from its memory. Everything is clear except for m_Position and P+offset. Does anyone have documentation of where are the skills, sysmessages, and so on, layed out in the Client's memory?
Again thanks a lot
Li-ion