I don't believe that's true, most places, anyway. Digital photos CAN be altered, but can be authenticated by the person who took them, who will testify they haven't been altered. Any suggestion of alteration would go only to the weight, not the admissibility, of the evidence. Any photo's admissibility (even film, with negatives) is subject to laying a proper foundation--i.e., testimony that the photo accurately shows what it purports to show.
Sorry for the lawyerly digression.
That sucks, Shellcrusher. I'm so sorry.