Why of course it's changable! The convo windows are but simple windows forms as well, so the background of the text areas inside are changable, unfortunately I don't know how
And what I can't do is change the blahblah is writing: text's colour... It's pretty annoying that way. Also, the normal backgrounds of MSN will only work on the main form's canvas, not on the text areas, so it's about useless for me
