if you would like a picture to be displayed next to your name like I have you can do that under profile, select the category that is called avatar and then you can upload an image or select one from the preset images.
also feel free to post pictures in the forum by clicking insert image. in the page that pops up choose your image to upload. Then once it is loaded "BBcode:" select copy the gibberish under "image" and paste it in the text box you are typing into on the forum page. if that doesn't make sense or you are having trouble then post here or e-mail me or something.