Well if you have Zt2 AA and ES then there is a hack at http://www.zooadmin.net/ZT2/index.php?topic=524.0 (http://www.zooadmin.net/ZT2/index.php?topic=524.0)But if u have zt2 there are many small hacks u can download
and also that hack i think is the no foliage/rock grid hack at zeta designs http://sites.google.com/site/rubensophiedesigns/Downloads/Hacks (http://sites.google.com/site/rubensophiedesigns/Downloads/Hacks)