ALT XING RESTR NOT MADE IN A B737-200 OVER DQO VORTAC; DE.

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ENRTE TO EWR WE WERE ON THE DYLIN 1 ARR. WE WERE DSNDED TO FL270 AND THEN TOLD TO DSND VIA THE DYLIN 1 ARR. AT THE TIME WE HAD ABOUT A 70-80 KT TAILWIND COMPONENT. I WAS CONCERNED WITH MY ABILITY TO DSND AND SLOW DOWN RAPIDLY ENOUGH TO COMPLY WITH ALL THE XING RESTRS. ONCE WE WERE CLRED TO DSND VIA THE ARR; I SET THE NEXT XING RESTR OF 13000 FT IN THE ALT WINDOW. THE FO CONCURRED AND WE BEGAN OUR DSCNT AS SOON AS WE PASSED THE FL270 FIX. AS WE CROSSED OVER DUPONT VOR; ATC ASKED OUR ALT. WE TOLD HIM FL185 AND THE CTLR STATED WE WERE SUPPOSED TO BE AT FL220 AT DUPONT VOR. WE THEN REALIZED OUR ERROR AND CONTINUED THE ARR WITHOUT FURTHER INCIDENT. OBVIOUSLY BOTH PLTS HAD FAILED TO NOTE THE INTERMEDIATE XING RESTR AT FL220. THE DYLIN 1 IS A FAIRLY NEW AND COMPLICATED PROC WHICH I HAD ONLY DONE TWICE BEFORE. I BELIEVE OUR UNFAMILIARITY WITH THE PROC; COMBINED WITH OUR CONCERN WITH THE LARGE TAILWIND ALLOWING US TO MEET THE 13000 FT XING RESTR; LED US TO OVERLOOK THE INTERMEDIATE RESTR OVER DUPONT VOR. A MORE THOROUGH REVIEW OF THE ARR PRIOR TO ACTUALLY BEGINNING THE PROC WOULD MOST LIKELY PREVENT A RECURRENCE OF THIS ERROR.