The info packet you received, with the yellow luggage tags, has all the info you should need. The directions in it are quite good. Your directions will depend on which airline you are arriving on since different airlines use one of two side of the airport. DME is located on Side B, on the lowest level..level 1. You will arrive on level 3, baggage claim is on level 2, and ground transportation is on level 1. You will get off the monorail tram from the gate to the main terminal, go past the security area. Then head to Side B, go down to the lowest level and head for DME. If you have a problem, just ask anyone on level 1..they should be able to direct you.
But go check out the info packet first, and familierize yourself with what you will be doing once you land. It's really quite easy, so don't get stressed.