Comic Style

Hi :)
I'm trying to use a comic style effect on an icon I'm making. I'm looking off of this tutorial. The final step says "Choose Filter> Artistic > Lighten". Only problem is, there is no "lighten" option under filter > artistic, nor any of the other places I looked. This is a PS tutorial, no version indicated. I'm using PS7, which I'm not really familiar with as PSP is normally my program of choice.

I searched for a similar tutorial in the memories, but couldn't find one. If anyone could tell me how to finish off this effect, I'd be very grateful. Thanks so much!