AN ACR FK10 FLC FORGOT THEIR XING RESTR WHILE DISCUSSING A DIVERSION TO ANOTHER ARPT. THE ARTCC CTLR REMINDED THEM AS THEY CROSSED; STILL AT CRUISE ALT.

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WHILE ENRTE TO ISP; GOT ACARS MESSAGE TO CONTACT DISPATCH ON ARINC AT ABOUT XB40Z. WERE INFORMED THAT RWY LIGHTS TO RWY 6/24 AT ISP WERE OTS. DISPATCH WANTED TO KNOW IF WE COULD ACCEPT RWY 15R/33L IF NECESSARY -- 5100 FT IN LENGTH -- AND POSSIBLY WET. I INFORMED HIM THAT WE COULD TAKE RWY 15R SINCE WINDS FROM THE SE; BUT I WAS MORE CONCERNED ABOUT APCH SINCE THE XA50Z WX HAD 800 FT SCATTERED AND 10 MI FOR WX -- REQUIRING A VISUAL OR CIRCLING APCH; 1000/3. JUST AFTER XC00Z; GOT CLRNC TO CROSS HARTY INTXN AT FL240. WE WERE STILL ABOUT 65 MI AWAY AT FL270; SO THE FO ELECTED TO DELAY DSCNT FOR A FEW MORE MINS. AT XC05Z; REQUESTED AND GOT THE NEW ISP WX VIA ACARS SHOWING 800 FT BROKEN AND 10 MI AS THE WX NOW; WHICH MEANT WE DID NOT HAVE LNDG MINIMUMS FOR CIRCLING/VISUAL APCH AND IF THE RWY LIGHTS FOR RWY 6/24 WERE NOT RESTORED BY OUR ARR TIME; A DIVERSION TO JFK WOULD BECOME NECESSARY. MY FO AND MYSELF WERE DISCUSSING ALL THE OPTIONS AND HE WAS GETTING OUT HIS JFK CHARTS; WHEN ATC CALLED UP AND SAID 'START YOUR DSCNT NOW AND DSND AND MAINTAIN FL190.' I RESPONDED; REPEATED THE CLRNC; AND LOOKED UP TO REALIZE THAT WE WERE OVER HARTY STILL AT FL270. WE STARTED DOWN AT 3000 FPM; AND I CALLED BACK AND SAID 'SORRY ABOUT THAT.' THE CTLR RESPONDED 'NO PROB.' J70-106 HAS AN MAA OF FL240 E OF STW; WHICH WAS PROBABLY THE REASON FOR DSCNT -- EVEN THOUGH WE WERE GOING DIRECT LENDY AFTER STW. WE PASSED STW BELOW FL270 ON THE DSCNT; WITH NO CONFLICTING TFC AT EITHER FL270 OR FL240. BOTH FORGOT DSCNT DUE TO DIVERSION DISCUSSION/PLAN. CROSSED HARTY INTXN AT FL270; NOT FL240 AS INDICATED IN PREVIOUS DEBRIEF. OUR CLRNC WAS TO CROSS AT FL270. ALL OTHER INFO IN PREVIOUS DEBRIEF CORRECT. SUBSEQUENT PHONE CONVERSATION WITH MR X; ATC COORDINATOR; INDICATED NO ATC VIOLATION BEING FILED BY ZNY.