How To Install Yahoo Screen Name
1. In your main Yahoo Messenger window click with your mouse on the Messenger Menu and then click My Contact Details.
2. The Contact Details window will open. You have to paste your generated screen name into the Nickname field by holding the Ctrl key on your keyboard and pressing the letter V on your keyboard.
3. Press the Save & Close button and from now on your new screen name will show in your Yahoo Messenger conversations.