As far as how to make the pic smaller, if you edit your post, you will see the code for the picture. Just add 'width=640' to the end of the picture code and the pic will be re-sized to fit our screens without scrolling.
If you took the picture on your phone, you can probably flip it right side up by selecting the picture and selecting 'rotate pic' and keep selecting until it rotates 180* one direction or the other, then re-post the flipped pic to your picture hosting site and it will correct itself on the forum post. Alot of work to go through, so just mentioning it for future reference!
