This picture was proven fake. I went to a ghost hunting seminar earlier this year and the investigator giving the seminar showed us this picture.
He said he had been in a store while visiting another part of the state and saw a postcard. The postcard had a black-and-white photo on it with a girl standing outside a line of stores by the street.
The girl on the postcard is the exact same one as in the burning building picture. Her picture was pasted onto the burning building photo.