Heat the oven to 350 F. Lightly grease muffin tins or place a muffin cup liner in each tin.
In a mixing bowl, combine the yogurt, eggs, oil, sugars, orange juice concentrate, orange zest and vanilla. In another bowl, combine the flour, flaxseed, baking powder, baking soda, salt and cinnamon. Turn on mixer to low speed and slowly add the dry ingredients to the bowl of wet ingredients. Mix until just incorporated, about 1-2 minutes. Fold in cranberries with a spoon or spatula.
Scoop 1/4 cup of batter into each muffin well and bake for about 22 minutes or until the tops are golden brown and toothpick comes out clean when inserted.