In a large bowl, stir together all the ingredients except the crust.Pour the mixture into the prepared crust and set it in a level place in the freezer to harden overnight.
Preheat the oven to 350 degrees F.In a small saucepan, gently melt the soy margarine.Combine the Sucanat and graham cracker crumbs in a bowl or food processor.Slowly add the melted soy margarine and mix or process until well blended.Press the crumbs into the bottom and sides of a 9-inch pie plate.Bake the crust for 8 to 10 minutes, just until it begins to brown.Cool on a wire rack before filling with Jack-O’-Lantern pie mixture.