As I wrote earlier, I tried to post several photos (as your Dad did) but the resolution of my photos was greater that the SailNet system can handle.
I will try to find out if my photo program can reduce the resolution of individual photos.
It may work if I submit only one picture at a time.
There is something in the instructions about using PhotoBucket (or some name like that), load the pictures into it, and provide people on this thread with the URL to get to the photos.
Thanks for your interest.