I you are able to activate the script ingame, than it should work. You can check thet by activating the console at the beginning of your turn and then press "cursor up", if then something like "add_money" is coming up, it runs perfectly. A second option are the "Year in time"-Popups, if they are appearing then the script is running.

Do know that the EB-Backgroundscript cannot change any AI-behavior on the stratmap, it can make only the preconditions that it maybe will do something clever. The RTW AI is ....ah you know...braindead!

XSamatan