Log in to your Playlist.com account (see Resources).
Enter the title of the song you would like to download in the search bar at the top of the page.
Choose to preview the song or add the song to your play list when the search results appear. To add the song to your play list, press the "+" button. The song will immediately appear on your play list.
Select the pink "Send Ringtone" button, located to the right of the song title, to download the song as your phone's ring tone. This will take you to a partner Web site called Motime.
Choose your cell phone carrier from the list of options, enter your cell phone number, and confirm your purchase of the song ($9.99 will be billed to your cell phone bill, with a credit of 15 purchasable songs a month).