Could someone explain what program or what site I could use to make a cool drawing and put it in my sig? Not one of those uber detailed ones, just a, for lack of a better word, poo drawing...And how do people get pixel drawings so good?

thye do pixel sigs in paint zoom x6, or x8 and go to paintbrush then the really small circle and draw it one pixel at a time, change colors by double clicking them then click the button and add to custom colors. experiment as for the others photoshop 6, 7, or 8.0 CS u can make a decent sig with lil knowledge by fooling around with distortions cloud renders and opacitys of the layers and brushes

I suggest visiting the site http://www.good-tutorials.com to familiarize yourself with Photoshop. After that look for a tutorial on brushing, and you're good to go.