Where can i find a song made from sonar where no 3rd party fx used?

Do you mean no mastering by others or just no fx other than provided by Sonar?

Cakewalk makes at least three available as demos with Sonar.

Are fx before A/D conversion allowed?

Its like when you buy sonar x2, use only whats in there to track, mix and master.  Except that you can use spectrum analyzer if one needs it. @panup, yea fx before a/d conversion is allowed, like an effects for guitar.

Warning: self promoting plug that should probably be in the songs forum:

This was made with Sonar X2 straight out of the box: http://woggmusic.com/Audio/Wogg/Rapture.mp3

A couple instances of Rapture and some other random Roland synths, the string synth thingy (technical term), 6 tracks live drums, and 2 or 3 live tracks of bass.