Hi and welcome to Pet Talk!

You must make an avatar (that's what the pics are called) yourself, they shouldn't be bigger than 60X60 pixels. Then you click the user cpu link at the top, then edit options and scroll to the bottom and upload the picture there.

If you need help making an avatar, I know there are tons of people here that would love to help, including myself

Let us know if you need more help with anything!