Thanks to mizzykitty, I may have gotten my moodtheme working. Let's test it out...
Edit: It works! Now, the original gifs are actually a little bigger than that - they come out a bit squishy on my page. That is probably due to the height/width thing, but I don't know what the actual height/width is...anyway, I can experiment with that later.
Edit#2: I fixed the squishy problem! Yay me! (I really need a smiley Dean icon...I really need a lot of icons actually)