Download the mp3 files here - http://adistantmelody.wordpress.com/2012/09/23/g-dragon-that-xx-ringtones-11-and-message-tones-11-for-mobile-phone/
You can request more ringtones and message tones on my blog http://adistantmelody.wordpress.com/
or here:
http://www.facebook.com/ADistantMelody