what are you talking about ?
a little more info might help your cause.
did they just disappear during a project, did you open up sonar and it started this way ?
(because all projects start this way / no tracks / no busses / just master, metronome and preview buss)
have you opened up the track manager to see if they are hidden ?
if you have not checked this, then you might have the same problem in any DAW including logic as well.