Ok, well I have the ending given in the Shiki no Uta single in the soundtracks list, but I know for a fact that the shiki no uta in the american episodes are split, and sound very different from the original song. I would really appreciate it if anyone could give 'em to me if anyone has 'em =D

LOL im looking for the same thing... im actually trying to make an instrumental out of it.. buuut. i dont wanna go to youtube and rip the audio out the video because i know it wouldnt sound so good Y_Y (at 11st i was just redoing the instruments)

You won't find the song the way it's aired on Adult Swim...they just picked random parts of the song to air with each episode, since it wasn't even the whole minute-and-a-half TV version. If you want them, you'll have to do a rip.