First, go to your profile.
![User Image](https://i596.photobucket.com/albums/tt41/SwellSundae/MGN/th_v2Add1.png)
Second, go click "Edit My Profile Layout"
![User Image](https://i596.photobucket.com/albums/tt41/SwellSundae/MGN/th_v2Add2.png)
Third and lastly, hover over the desired media pane and remember the div ID, which is the media ID. Or at least the string of numbers at the end, so you can add it to #id_media_ to form the media ID to be used :)
![User Image](https://i596.photobucket.com/albums/tt41/SwellSundae/MGN/th_v2findmediaID.png)