I was thinking of trying out HBD as a friend of mine recommended it to me. He played over a year ago and was telling me some of the rules. He said something about ballparks only being able to be used in certain regions (Example Montgomery in the AL/NL South not North). I looked at the help section and saw nothing about it. Does this still exist? TY

Yes. This forum thread lists all of the ballparks, their ratings, and which divisions they can be used in. http://www.whatifsports.com/forums/Posts.aspx?topicID=421442&page=1