[Johnny9ball]

Make sure the images are in a file format that is allowed.

gif jpg png lws txt lwo zip bmp jpeg ma mb mel qt avi

Choose browse at the bottom by attach image. Navagate to your file and select it, your good to go. I usually always use jpeg you can get great compression and excellent image quality. Its also a good idea to make sure the image is a good size for people to see on screen. You dont want to have to side scroll to see the whole image. Usually in the 300 pixal range is great for anyone surfing.