Extraction details: For the full package, just extract the folder into your rm2k3 projects folder and your good to go. For the pieces downloads, extract the gamefiles first (contains the games folder). Then extract the two RTP packages into the game folder in order to properly install them.
Whats not included: Many scripts (in txt files) have been omitted from the source release, as many elements from the scripting (storyline) are going to be incorporated into a new project of mine. Most story related material was left out of the gamefiles, but some of it has been left intact.
Forum release topic(on Woodus, links to 2 older topics about the game containing additional details are there):
http://www.woodus.com/forums/index.php?showtopic=15368&pid=249155&st=0&#entry249155