Created content allowed
This setting lets you change whether you can use or view content that you create or that other Xbox LIVE users create. To modify this setting, follow these steps:
Sign in to the profile for which you want to change the settings.
In the My Xbox area of the Xbox Dashboard, select your gamer card, and then press the A button.
Select Edit Gamer Profile.
Select Privacy Settings. If you are prompted to leave the current session, select Yes, and then press the A button.
Select Member Content.
Select Everyone, Friends-Only, or Blocked, and then press the A button