Can Somebody Help Me Im a Bit Confused

[Xolotl]

Ive gone through this forum for a few hours trying to set up the Drumania sim DTXmania, ive downloaded the sim already but i dont know what files do i need to run a song/score, like ive said before ive gone trough the forum and i havent found an answer so if anybody can give me an answer ill appreciate it.

P.S. sorry if there is a similar post to this one; with the answer (its kinda hard to search posts on this forum)