well the o/d light is a sign of the tranny wanting attention. ive heard of these cars storing check engine lights when the o/d flashes. i have an obd2 scanner and i live near fullerton in the diamond bar/rowland heights area and if you come on by i can scan it for $1 for you. that, or you can pay 65 dollars at a stealership lol.
the flashing light can be anything but get that car scanned. if you want my number/directions then pm me and we can take a look at the car.