Instructions
Select "PlayStation Store" on the PS3 main menu.
Select "Themes and Avatars."
Select "Avatars."
Select "Red Dead Redemption Avatars." Wait a moment for the page to load.
Select the avatar you want to download. Each avatar is $0.49, and the console will automatically deduct the funds from your PlayStation Store wallet. Upon completion, the avatar will automatically install to the console's hard drive.
Press the "PS" button on your controller. Select "Yes" to return to the main menu.
Select "Account Management" on the main menu.
Highlight "Edit Profile" and press "X."
Pick the "Red Dead Redemption" avatar you want. Press "X" to select it.
Select "Continue" to permanently save your changes. The avatar begins appearing immediately and you will see it on your trophy card when it finishes saving.