JEB, just flip the phone to landscape mode when taking the picture... so that you are taking a wide picture instead of a tall one.
If you use the "Attachments and other options" feature to upload photos to the forum, it will "squash" tall pictures (or portrait type photos).
Of course, I had to resize the photos as well before I attached them. I used the "thumbnail" option on my free photo editor (0.25 MP).