Posting pics is virtual child's play - and not much more difficult for grown-ups!
Host is on a site that allows picture uploads. Photo Bucket, Hunt101 and others make it simple. Upload the picture to the hosting site. Then use the appropriate size/URL provided and place it in a reply here inside square brackets and "image" like this: [img]. On the back side of the host image url, place the same deal but with a backslash added, like this [/img]. The whole sequence looks like this:
[img]http://northwestalaska's_imageURL.jpg[/img]
But since "http://northwestalaska's_imageURL.jpg" is not an image that is actually hosted anywhere on the whole world-wide web, it shows up as text in this post. When you use a real one for an uploaded image, it'll only show the image.