2002 OLDSMOBILE AURORA Structurebody Problems

The Frame has rust under door panel broke Car Frame body near battery cave in hole and rusting hole in trunk near spare tire.

I HAVE A 2002 OLDS AURORA THAT TODAY HAS WATER STANDING IN THE BACK PASSENGER FLOORBOARD FOR THE TENTH OR TWELFTH TIME. THIS HAS HAPPENED SO MUCH THAT I HAVE LOST TRACK OF HOW MANY TIMES I HAVE HAD TO TAKE MY CAR TO THE DEALER TO HAVE IT FIXED. WHEN IT RAINS WATER LEAKS IN FROM THE FRONT PASSENGER WIDOW SEAL ON THE RIGHT SIDE OF THE WINDOW ABOUT HALFWAY DOWN AND THEN RUNS DOWN TO THE MOLDING AT DOOR OPENING AT THE FLOORBOARD. FROM THERE IT THEN RUNS DIAGONALLY BACK TOWARD THE BACK PASSENGER FLOORBOARD ALONG THE MOLDING AND POOLS UP. LIKE THIS MORNING, THERE HAS BEEN MANY TIMES THAT TWO INCHES OF WATER IS PRESENT. I AM CONCERNED ABOUT MILDEW OR ADDITIONAL PROBLEMS THAT MAY BE PRESENT OR MAY SHOW UP AS A RESULT OF THIS CONTINUAL PROBLEM. THE DEALER DOESN'T SEEM TO HAVE A CLUE ON...