could someone tell me how to install the fourth age mod on rome gold from steam?

i've searched alot of places and even taken the advice of the creator on twcenter but i'm still confused

thanks to anyone that can help

i've already followed all that advice and it just doesn't work for me because there's no shortcut for barbarian invasion

@tallTuck94: I would probably post something like this on the Steam forums for the game where you are more likely to run into people with the same issue or who know how to solve the problem.