PLT OF A BEECHCRAFT 23 IS SENT AROUND TWICE AFTER COMPLETION OF AN ILS APCH AND BLAMES THE TWR CTLR FOR POOR SEQUENCING PROCS.

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FLT WAS VECTORED BY ORLANDO APCH CTL FOR THE ILS RWY 7 APCH AT 'ORL' AND INTERCEPTED LOC 15 MI OUT AND WAS TURNED OVER TO ORLANDO EXECUTIVE TWR. ON CONTACT WAS INSTRUCTED TO CONTINUE THE APCH AND RPT A 3 MI FINAL. AT A POS OF 5 MI FINAL; I WAS CONTACTED AND ADVISED; #3 TO LAND BEHIND THE CESSNA. I HAD VISUAL CONTACT WITH A MALIBU IN FRONT OF ME ON FINAL AND WAS LOOKING FOR THE CESSNA. WHAT HAPPENED NEXT IS THE CESSNA APPEARED LOW AND CLOSE IN ON A BASE LEG IN FRONT OF ME. THE TWR INSTRUCTED THE CESSNA TO GAR AND THEN INSTRUCTED ME TO MAINTAIN 500 FT FOR THE LOW APCH. I QUESTIONED THE TWR AND WAS INSTRUCTED TO GAR AND FOLLOW THE CESSNA AND FLY 1 MI PAST DEP END BEFORE TURNING TO THE DOWNWIND. I COMPLIED. THE CESSNA WAS INSTRUCTED TO MAKE A SHORT APCH. I WAS INSTRUCTED TO MAKE A R 180 DEG AND CONTINUE THE DOWNWIND. NEXT; TFC WAS CALLED A CESSNA 210. I PICKED UP THE C210 AND WAS TOLD TO FOLLOW THAT TFC ON SHORT FINAL. I TURNED ON BASE AND PICKED UP THE DIAMOND JET ON FINAL ALSO. THE SEQUENCE LOOKED TOO TIGHT TO ME. THE FREQ WAS BUSY. I SIDE STEPPED THE FINAL TO THE R AND CALLED THE TWR WHO APPEARED TO HAVE FORGOTTEN ME. I WAS THEN INSTRUCTED TO GAR AGAIN AND STAY TO THE R OF FINAL. AFTER THAT WE FLEW A DOWNWIND AND WERE SEQUENCED TO LAND. FIRST I BELIEVE THERE WAS LACK OF GOOD JUDGEMENT USED IN THE ARR SEQUENCE. THE CESSNA ON BASE SHOULD NOT HAVE BEEN SANDWICHED IN OR I COULD HAVE BEEN INSTRUCTED TO SLOW DOWN. AFTER ALL I MADE FIRST CONTACT AT 15 MI OUT. THIS ARR DID NOT DEVELOP INTO A CLOSE CALL BECAUSE I STOPPED MY DSCNT AS I PICKED UP THE CESSNA ON BASE THEN TURNING TO FINAL. I DO FEEL THAT A LESS EXPERIENCED PLT COULD HAVE HAD A NEAR MISS OR POSSIBLE A NMAC. I BELIEVE THE NEXT SEQUENCE WAS EVEN WORSE. IF I HAD NOT PICKED UP THE DIAMOND ON FINAL AND SIDE STEPPED; THERE WAS SURELY A POTENTIAL OF MIDAIR THEN. I REALIZE THE DIFFICULTY OF SEQUENCING ALL THIS TFC.