329916 WdPress Plug-In: Biz Directory

I'm looking for help developing a Business Directory plugin for WordPress. I would like to emulate the functionality of the directory at this site: [login to view URL] Business directory entries are all posted under a specific category in my instance of WordPress (e.g., "directory"). At least 3 levels of directory categories (Category, sub-category, sub-sub-category) Users can comment upon and rate entries in the business directory. Since we'll be using the plugin as a business directory -- not to rate blogs as in the sample -- the specific custom fields per entry (e.g., author, listed in, etc) will change a bit. I'd like to install as an add-on at a site still under development at www.TRMom.com. The directory that is currently installed is an open-source plug-in, but doesn't quite fit the bill. Please let me know if you have specific questions. Thanks.