|Images can indeed be shown in your posts.
You can enter the url of an image into the "image" field. (use the full url, including the "http://", not just the file name)
You must link to an image stored on a publicly accessible web server, e.g. http://www.some-unknown-place.net/my-picture.gif. You cannot link to pictures stored on your own PC (unless it is a publicly accessible server) nor to images stored behind authentication mechanisms such as Hotmail or Yahoo mailboxes, password-protected sites, etc. To display the image enter it in the "image" field on the posting form.
You can upload images to spraci for use on posts by using the file manager in "my files".
Any images in there are also available for use on the wysiwyg version of the posting form. (classic version of boards)
Please note that anyone found uploading porn or illegal copyrighted images will be suspended.