problems with evaluation download

cd burning

somehow i figured out how to get the song to,
1.play in n-track.
2.add effects
3.mixdown.
4.burn to cd.
However,when playing back the cd there is some other
recorded song going on,some of the time.also can’t burn any of my songs through windows media player, just n-track.
Thanx for all your help.
dt26