FLC OF A B757 WERE ASSIGNED THE OTHER PARALLEL RWY AND WERE HELD TOO HIGH; AND CLOSE IN; BY CTLR FOR A NORMAL APCH AND LNDG RESULTING IN THE CTLR VECTORING THEM AROUND FOR ANOTHER APCH.

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ON APCH WE WERE ORIGINALLY ASSIGNED RWY 30R ARRIVING FROM THE E. APCH CTL THEN ADVISED US THAT WE WOULD BE USING RWY 30L. APCH VECTORED US ACROSS APCH PATH TO RWY 30R AT 5000 FT/HEADING APPROX 230 DEGS/10 MI OUT. PNF ASKED FOR LOWER AND CTLR ADVISED US WE HAD TO WAIT (UNTIL XING RWY 30R APCH PATH). HE THEN ASSIGNED US 4000 FT. PNF ADVISED CTLR THAT WE WERE TOO CLOSE (TOO HIGH) FOR AN APCH. CTLR THEN GAVE US A TURN TOWARD THE RWY (HDG 300 DEGS). PNF ASKED FOR A L 360 DEG TO DSND AND ALIGN WITH RWY. CTLR ADVISED THAT HE WAS UNABLE AND GAVE US A DSCNT TO 3000 FT. BOTH PLTS TURNED OFF THE FLT DIRECTORS SINCE WE WERE TOO HIGH TO CAPTURE THE GS AND WERE ON A VISUAL APCH. WHILE IN THE TURN TO 300 DEGS THE CTLR GAVE US A L TURN TO 120 DEGS. WE REMAINED CONFIGURED WITH GEAR AND FLAPS DOWN ANTICIPATING A L TURN BACK TO THE RWY. PF WAS FLYING THE ACFT MANUALLY AND TURNED SLIGHTLY PAST 120 DEG HDG. CTLR GAVE US A CLB TO 4000 FT. PF CORRECTED BACK TO 120 DEGS AND BEGAN CLB TO 4000 FT AND CALLED FOR GEAR UP AND FLAPS TO 15 DEGS. CTLR ASSIGNED HDG 180 DEGS; THEN HDG BACK TO 120 DEGS AND VECTORED US FOR ANOTHER APCH. APCH CTLR DID NOT ADVISE US OF HIS INTENTIONS FOR VECTORING US TO FINAL (TURN TO DOWNWIND OR STRAIGHT-IN TO THE RWY). WE WERE VECTORED TOWARD THE RWY EVEN THOUGH WE SAID THAT WE WERE TOO HIGH FOR THE APCH. THERE WAS CONSIDERABLE CONFUSION AS TO THE SEQUENCE OF THE ACFT FOR RWY 30L.