First, check how large your picture is. That's the biggest problem most seem to have --pic larger than 128KB.
You cannot use Quick Reply... Use the Reply button: under that click Additional Options; under that use Attach and browse your computer for your pic.
If the picture is too large and you cannot reduce it, try a third-party hosting like Photobucket.com.
It is aggravating the first time you try, but you'll get it!
