Creating a Mod TEW 2005 Questions

[Quoth the Raven]

So I am getting back into the EWR/TEW games, and I have always found TEW 2005 to be my favorite. I wanted to try something different this time by creating my own data/mod. However, I am not familiar with how the game generates workers so I am wondering if there is some guide on how many workers you need to keep the game from generating other workers. Also, I seem to recall some info on other aspects of the game and creating mods, something like theory and practice.  I forgot what the thread was even called. Does anyone have any information on the basic principles of creating a mod for this game?

Thanks.