Step 1: Download the ring tone file (by clicking the image above) to your phone.
Step 2: Find saved file on your phone.
Step 3: Open file
Step 4: In the options menu, select "Set As" (Ring Tone) or (Caller Ring Tone) or (Notification Tone)
Step 1: Download the file (by clicking the image above) to your computer (desktop)
Step 2: Drag and drop the file into your iTunes Library (into the "tones" section if available)
Step 3: Sync your iPhone
Step 4: From the Home Screen (on iPhone) choose Settings > Sounds > Ringtone, then choose a ringtone.