recently i got into a car accident... which resulted in my driver side door getting scratched pretty badly, and dented.  now... i am just a poor college student so i was wondering if there was any sort of paint thinner or lacquer thinner that i could buy rather inexpensively in order to take off the white paint that got onto my red car, without ruining the paint on my car more than it already is.  :'( :'( :'(

Try some rubbing compound as that will remove any paint from the other car.