how can i get the custom ringtones that were already in my sidekick4g into my new...

[Lelo]

...htc amaze 4g? ok the question explains it all ,but anyways i had a sidekick 4g and there is a ringtone that i like on it that had already came preloaded into the tmobile phone called techno bird i really want to get it on my htc amaze but i dont know how to and plus its no preloaded into this phone