Need Google Maps on Classifieds


I've installed and configured Google Maps. It works great on posts and pages, but I cannot seem to get maps to show on my classified ads.

I installed the geolocation plug as recommended to use custom fields to interact with the map.

Perhaps I misunderstood. Does it need to be manually placed. From the Google Maps Settings it appears that adding a "Address" custom field and "latitude" and "longitude" should automatically create and place a map.

Also, on the Google Maps widget -how do i specify only Classified ads to show. Do I use the Query. What is the correct procedure?