BBS's new trailer song

good evening guys (sorry but currently i'm being too lazy to look up the american time ;p)

since i've watched the new Kingdom Hearts' trailer, i'm totally into the song that plays in the trailer

YouTube - [HD] English Subbed - KH : Birth By Sleep TGS 2009 Trailer!

so in the last days i've tried to arrange a little part of the song; but i'm not satisfied with what it sounds like, some notes seem wrong to me and finale notepad sounds kinda bad overall.
do you guys know some better tools to arrange songs with?

anyway, here's what i got, go ahead and tell me what you think.. if it sounds right or wrong, and if you actually think that finale notepad sounds allright.. any criticism is appreciated =)

download

greetings

e: download link fixed since it seemed to be broken