Which part of it don't you understand? What aspects of your problem remain unsolved? Are you having trouble with the CGI aspect of things? Do you not know how to _send_ a GIF that already exists, for instance? Or maybe you're not sure how to get the value of the bantext form field? Or maybe you understand those things, but there is some part of the graphic-generating code that you didn't follow? We could probably help you better if you could explain more precisely what trouble you are having.