I have been working with the Chart Table page (and the Mapmarker API plugin) for a bit now and I am beginning to get the hang of it.
What I try and do is keep the map scale as displayed relevant to the most recent posts. As there is so much more then just the recent ones, the scale shown on the Chart Table page is frequently too local to display all the entries from our earlier posts. As you scale out or scan by clicking and dragging, more entries will appear. Some areas will show a green circle with a number and that refers to the number of entries for that area – scale in and you will be able to see the Anchor icons for that area. Those icons will have pictures and links to posts tied to that area.