To make jQuery plug-ins, first you must learn jQuery itself. Try a web site called google.com, it might help you find tutorials on jQuery (initially avoid the tutorials on editing existing plug-ins, and concentrate on learning jQuery itself, so that you know what to do when you put your ideas for plug-ins into action). Give yourself a month or two of solid work, and then start working on your own original plug-in ideas. Then we might be able to help you.