Need help with actionscript

i am using a template to build a website, and want to add another .swf file “reference” i guess…

this is the actionscript code i have in the template, which currently supports three songs in the template. i want to add a fourth song.

_root.mus_num = 1;
path = “music”+_root.mus_num+".swf";
loadMovieNum(path, 1);
_root.soundstatus = “on”;

i have files named music1.swf, music2.swf, music3.swf and i created music4.swf, but this last one will not play when i test the movie.

any suggestions?
thanks.