Well, I download them to my computer, open each one in a photo editing program, rotate and "Save as" with an x on the end of the file name so it's a new file & then upload that one. I'm not sure why some have a problem with the sideways pics? I noticed the tail light pics you posted didn't have an issue. What are you using to take the pics? When looking through your pics & deciding which ones to upload you could try opening it in a photo program(sometimes just double clicking will do this or right click and "open with") & saving it to a new folder with a new name before uploading them. I have a folder on my desktop called flip fix that I use when I help someone out. I know this is an extra step but it's pretty quick once you do it a few times.
Good Luck & POST MORE PICS!(I really don't mind fixing them if needed)