If you have one to one relates, you can have the values show up in the popup itself. However, since you have 1 to many relates, if you want to show the actual field values, you need to click the Show Related Records button, which opens a table showing the related records. You do have the option to display a summarized value in the popup itself. For example, if one of your attributes is store sales, and there are x stores that are related, you can have the popup display the sum of all sales of the x stores.
Thanks,
Mike