Summarize this article:

The Applesauce Polish will not remove extremely deep gouges from the back of your iPod. It will reduce the appearance of scratches.  This product will create hairline scratches. These will be removed by the Applesauce Glaze. This product is safe to apply to the front and screen of your iPod as well.  During this time, the iPod will absorb the product.  According to the manufacturer, it can take between three to five sixty-second sessions before you will see results. The applesauce glaze will remove minor scratches from the back of your iPod. It will not repair deep scratches.  During this time, the iPod will absorb the product.  It may take more than one sixty-second sessions to see results. This will remove any excess glaze. If scratches remain, repeat the entire process until satisfied.

Summary:
Shake the applesauce polish (red label). Open the bottle and squirt a dime-sized amount onto the provided cloth. Rub the back of the iPod in a back and forth motion for sixty seconds. Wipe off any excess product with a clean corner of the cloth. Repeat steps 2 through 4 as needed. Shake the applesauce polish (green label). Open the bottle and squirt a dime-sized amount onto a clean cloth. Rub the back of the iPod in a back and forth motion for sixty seconds. Wipe off any excess product with a clean corner of the cloth. Repeat steps 6 through 9 as needed. Wipe the iPod with a clean cloth in a light, circular motion. Assess the iPod's scratches.