Hey! We are former neighbors! I am from Romeoville, IL! If fact, the 2 other friends we are cruising with are from Joliet! Right by Joliet Mall! Small world! Anyway, I did explain how to read the #'s in my original post. Once you get your tickets and see the sign & sail form, look on the back, on the bottom of the form you will see the string of numbers. You'll see your booking # then after that will be your room #, it will always start with a letter then 2-3 #'s. If your have the Carnival brochure, you can see the floor plan and where the rooms are. Hope this helps! Oh, and cruisecritic.com is a great website! Oh and another way to find if your room is assigned is this -- go to the carnival.com website - go to view cruise details, log-in using your ID & password (if you don't have one you'll have to register first), the on your browser it will say something like carnival.com/myreservation.apsx. Delete the myreservation part and put in bookmidify.aspx and all your info will come up. However, I tried this method and I'm not showing a room assignment ther, but I am on my documents. I'll keep trying though!