Okay, First you search the thing you want, followed by ".gif" (ex: cat .gif) Find the picture... Then right click on it, and click "save as". Save it somewhere where you can find it. Then at your profile, click change picture, and click on the picture you saved. That's it! Thanks!
-see my other walk through, http://scratch.mit.edu/projects/20650944/ Trust me, It's easy. cat.gif was made by French_Toast, and I wrote the instructions. Complement French_Toast for the awesome kitty! Yay! This is my super most popular project! THANKS EVERYONE! Shout out to groovythemes for 50th love!