A point map draws a separate point for each row in the data, then consolidates those point based on density into a summary number. As you zoom into the map, points expand out until represented by single markers. You can set up drillthroughs from individual markers to pull up specific information.
You'll need to specify either a latitude and longitude or a postal code (and optionally a country), as well as at least one field to display when someone clicks on a point. If your postal codes are outside of the USA, you'll want to specify country with that additional field.
The following properties are set in the Report Editor -> Additional Configuration -> Edit Properties -> Color Scheme.