well in your post, notice the bar below the box you type in? Good. Ok, next thing you might notice if you look through that bar is a little button on it with a tree or something that looks vaguely like a picture. Well.. click on that, and you'll notice that [ img ] [ /img ] (without the spaces inbetween) will appear in your post. Then create an account on somewhere like
www.photobucket.com (if you don't already have one), then upload your pictures to there from your computer, then get the link (URL) to the picture you uploaded, and copy that inbetween the [ img ] and [ /img ] tags in your post, leaving no spaces between. And then you're sailin' my friend.