That should be enough time, however, if you do not receive the package, just make sure that all of your luggage has name tags on them. On your arrival at the airport, proceed to the Magical Express desk located on the lower level of terminal B. Disney will ask you for your airline baggage claim checks and a description of your bags and so that they can pull them for you and deliver them to your resort.
They will issue a bording voucher at the counter.
David