Adjust the blade so the gullet of the blade (the notch between the teeth) runs on the center of the top wheel. This supports the FRONT of the blade where the cutting takes place. I also have the same saw you have. I get very good cuts from it but not with the craftsman blades. My current blade is a Timberwolf 1/4" X 8RK 140BRK). While the cut is not table saw smooth it is very acceptable. On 1/8 ply only a few swipes of a sanding block will get rid of the saw marks. Follow the instructions on their website for setting the tension as it is a bit different than most.

This is the best tune up video I've found and is what I used to set up my saw. https://www.youtube.com/watch?v=wGbZqWac0jU

Ken