I find all the comments about the source code to be overly dramatic. Anyone hoping for copy-paste to work, is definitely a newbie to start with. I know of few programs where cut and paste will work easily in that way. The code, while not meeting today's standards, is actually pretty good for what it is. I've worked with a lot worse, and this project is relatively easy to follow so far.
I've got bugs to fix in other non-gaming projects, and I'm looking forward to working on the Incursion bugs as it is going to be a lot more straightforward.
Said as someone who has actually worked on the code.