2006 KZRV ESCALADE Tires Problems

I BOUGHT MY RV, 2006 KZ MONTEGO BAY 36FT. FIFTHWHEEL FROM CCRV IN CORPUS CHRISTI,TX 2 YEARS AGO. IT WAS A NEW MODEL. THE TIRES ON THE RV WERE FREESTAR BRAND, ST235 80R16, LOAD RANGE 'G' AND THE DOT IS TCI 4705 ON 3 TIRES AND TCI 4805 ON THE OTHER 2 TIRES. ON AUG. 2, 2008 WHILE DRIVING TO AN RV PARK, ONE OF THE TIRES ON THE PASSENGER SIDE BLEW OUT. ON AUG. 4, 2008 WHILE DRIVING HOME FROM THE RV PARK, ANOTHER TIRE, ON THE DRIVERS SIDE, BLEW OUT. BOTH BLOWOUTS RESULTED IN EXTENSIVE DAMAGE TO MY RV AND I WAS LUCKY THAT WE DID NOT HAVE A BAD ACCIDENT. I CONTACTED THE TIRE DEALER, TIRECO INC., 500 W. 190TH ST., GARDENA, CA 90248, TEL. (310) 604-8760 AND REPORTED THE TIRE FAILURE. THE TIRES AT THIS TIME HAD LESS THAN 2000 MILES ON THEM. I HAD MY...