Already posted this in the other thread, but here it is again.
Since they don't bother to rename the files after they take them from the game files, you can find your heads pretty easily if you plug in your head's filename (you can get it with #3 on furniture) into the end of the URL. (After you click on a head, make sure you are also in the right section.)
Which is actually another reason I'm not fond of the website..