http://phoneky.com/iPhone-ringtones/?p=view-item&st=4&id=m20738
No idea how you get that from there to your phone, listened to the preview and it sounds like the right version, and there's a link to download it.
Dunno if this was the best way but after much f-ing about I had to purchase the music from iTunes then follow the instructions from a downloaded free ringtone app (imaginatively called Ringtones). This allows you to set the length of your music and put it in the correct file format.
It is possible to do it all without the app but when I tried I failed miserably.
ThanksTried that one myself but it isn't the Goodison one. Doenload it from the official site, save to your desktop then move to merge with itunes, think that is how i did mine many moons ago.