I'd suggest looking at Feareh's tutorial.
Just do not follow the example of her putting it in her signature. It is basically the same thing as posting images in the Reply box.
Also please do not make three topics of a problem. One will do with the questions all together. Thanks. c:
Step one: Take a screenshot of your preset.
Step two: Upload the screenshot to Tinypic.com (http://Tinypic.com)
Step three: Copy the IMG /IMG link
Step four: Pate the IMG /IMG link in the reply box
Hope this helps!