Note: "Sides" here refers to side cubies, not to the sides of the center layer, which are center cubies.
1: Find a target cubie (a side cubie with no facelets the color of the top layer)
2: If it is in the top layer, rotate the top layer until it lines up with one of the second layer middles. It should make a shape like an upside-down T. Use one of these algorithms:
5: Repeat steps 1 thru 4 until all the second layer sides are solved.