Ok. I think this is it. If so,this should help.
1.click link below.
2.you will see a button that says "change avatar". beside it,are the words "reset avatar". Click that first.
3.Then click "change avatar" button.
4.a box may appear. click on "add file".
5.Choose the avatar you saved to your file and click on it.
6.Scroll down the page to the very bottom and press "save changes".
[link]There ya go.^_^
If you want a message or a link to appear under all of your messages then you can put that in your tag.
Like mine down here.