Is the Etap nearer to the RER station of Val D'Europe?[/QUOTE]
yes, its literally up a set of stairs at the exit of your platform (when you get off the train from DLP at val d'europe walk to your right and up the stairs there). When you come to the top of the stairs and turn right again, you're in the courtyard where the Etap, Ibis and Residhome are.