The e-documents is pretty standard now. They email them to you (or to your TA and you pick them up from them) The luggage tags are slowly going away also. They give you a tag in the email that you print out and us as a luggage tag. But they are pretty flimsy and must people say they rip off the bag easily. To help, go buy some clear packing tape and tape the paper tags to the bags (or loop the tape around a handle and sandwich the tag in between the tape halves like they do for luggage tags at the airport)
Did you fill out your info on the RCCL website? If you fill that information out before hand and have the e-documents you are set. In fact you have the same level od documents that 80% of the other passengers have.
Don't worry about it too much.
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007