Are you talking about this set?http://www.games-workshop.com/gws/catalog/productDetail.jsp?prodId=prod1050157If so, we have two sets painted up and assembled at the store. Chase can confirm, but I think it's in Plainville at the moment. I have the thin rulebook in Abington which I could send down.There was also a much older, more robust campaign box set that was also called Mighty Empires. GW has provided the link to a PDF of the rules here:http://www.games-workshop.com/gws/content/article.jsp?aId=1400005
Are you thinking Tuesday night campaign?