Okay, JC, I think I found the pic that you're to use...from another thread. I changed my avatar to it...I'll change it back later on. You can click on the Laettner pic in my avatar and when it brings up the bigger picture...just click and then 'save image'. Then you'll have the picture saved on your computer (or whatever you're using).
Okay, when you get ready to post, just click on your avatar (well, you don't have one, but the space for it), then that will bring up a box that shows your username and some other info...click on 'profile page' that will bring up a page showing your recent 'activity'...look to the left and click on the big space that shows your avatar (or no avatar in your case) and that will bring up the 'avatar editor'. Where it says 'browse' click and that will bring up files on your computer (or if you're using a phone, I guess it will too). Hit the 'pictures' file and then find the Laettner pic and double click it. It will load it into the avatar (and resize it automatically). Hit okay, and you're good to go.
I hope that helps you add the avatar.
OFC
