Installing an Action
1. Download action.
2. Unzip.
3. Put the .atn file in your Photoshop Actions folder (Adobe\Photoshop (version)\Presets\Photoshop Actions)
4. Add the action to your actions palette. To do this, click on the arrow in the upper righthand corner of the palette to open the menu. Choose "load action" and then select the action you want to load.
Using an Action
1. Click on the arrow next to the action to expand the action.
2. Click on the first step.
3. Click the Play button at the bottom of the palette.