i'm looking for a picture of the tao symbol on a go board. anyone know?

Is the "Tao symbol" the "Yin Yang symbol" (two interlocking spirals) ?

If so, there's quite a few images around showing the Yin Yang symbol created by go stones on a go board.

yes, can you link one?

I think if you google/bing image search for 'yin yang go board', you'll find a range to view.

found 21 images. And a game called Yin Yang at the Taiwan Boardgame Design site.