<font face="Comic Sans MS"><font color=#006400>Hi there,
It seems you know how to do the pic in your signature now, so I'll address the photo under your name - that's called an avatar.
Go to your >cp user located towards the top of the page. Click on that, then click on "Edit Options" - The last option is to include an avatar - click on the button that says "Change Avatar." There are several provided that you can choose from.