Welcome to our support forums
Well, James.. it depends on what you really need. You say you want it like yellow pages - basically you can build a site now using our default version. You can just create address fields, install several plugins like Google Map, search by distance and locations. It's possible this functionality will be enough for your kind of site.
Please let us know more functionality that you need and if possible specific features you would like to see on your site. I can then advise if you can use default version