I do like this directory and have to tell you I have looked at more than a few. I thought with 3.0 I could have a custom menu on a side bar. I created the custom menu. Added the categories from my Business categories but when you link on the menu items - you get all the listings not just the ones from the specific category.
Can you help me here... Dev site is http://lsconference.com/wordpress.
http://wordpress.org/extend/plugins/wp-business-directory-manager/
