I read it again but it says that, is it saying that as if the folder, face, isn't a folder but the icon you made? I don't know if this makes sense.
Then let me explain it.
First off, make a face. After you have done that, make a folder called thumbs. The face you just made, make a copy of it, but the copy goes into the thumbs folder and needs to be 64x64 in size. After you have done that and still have the original face, create a .zip and name it anything you want, but make sure it has Face_ in front of the name. Put the original image and the thumbs folder into the .zip you just created. You have a face.