Sitemap Creator executes rules in order until either either all rules or have been processed, or a matching rule has the Stop Processing flag set.
When creating new rules, they are appended to the end of the existing list and so you may wish to reorder them.
The Rule list supports drag and drag re-ordering. Hold down the left mouse button over a rule and while keeping the button pressed, move the mouse. A insertion line will be displayed showing where the rule will be moved to, release the mouse button to complete the move.