Instructions
Connect your Xbox 360 to your computer. Use a network cable to connect the two devices directly or connect them both to your network's router. Having a modem and Internet access is not required to stream media.
Open Windows Media Player 12, then click the "Stream" menu near the top of the application, then "Turn On Media Streaming."
Click "Turn On Media Streaming" in the new window, then click "OK."
Turn on your Xbox 360 and browse to the "My Xbox" menu.
Select "Picture Library," then select your computer from the displayed list of locations.
Select a picture to view with your Xbox 360.