[MrHenryDog]

Open CS and make sure the actions window is ticked (look for windows along the top)
On the right of the actions tab there is a lIttle button, it looks like a 'play' arrow, click
on that and a window opens. Look for "Load Actions", browse for the action file *.ATN

once loaded to use the file open the preview PSD, copy (Ctrl A then Ctrl C) your cover and paste (Ctrl V) it onto the
"Cover" layer (this is selected by default)
Once the cover is loaded go to the action file, click the arrow next to the folder highlight the next line in the dropdown
"Cover Preview" along the bottom of the action window click the "Play Selection" button

Once finished, use "Save As" to name and save your preview as a jpg COLOR="Yellow"]IMPORTANT[/color] when closing the PSD file DO NOT save changes