Thanks, Jim1012, got it!
I had been trying to see the map by clicking on "See Full Itinerary" after selecting the cruise and getting to the "Select Departure Information" page. Never noticed the Itinerary tab on the top of that page (boy is my face red).
I like the way it's presented on the Celebrity website - you can see the maps displayed as you're perusing the cruises. Just thought RCI would be doing something similiar.