Did the kitty answered your question? lol I asked a member from the chat forum how to put written words in my chat profile and he said...go to the homepage, click 'control panel' and work it out yourself =p Oh how I love that kind of helpfulness.
Anyway go to Control Panel and under "your chat profile" click on 'edit profile picture' and upload your awesome pic from there =D
As for your avatar pic, go to "Setting & Options" and click 'edit avatar' and upload ur avatar pic there.