yep rezize, bitmap photos should be changed to JPEG (open ___. bmp in paint then SAVE AS ___. jpeg) I do a custom size of 400 x 671 (I think its automatic in the "custom" settings) so it will be 533x400 and that works for posting pics in your readers rigs or in a thread. then "save as" ___small. jpeg (thats what I do) and put it in a created "small photo" folder as to not mess with your original pic.
Enjoy!
Ian