It can often be a challenge to fit a large bridal party into one photo. Instead of having all the men stand to one side and the ladies to the other, have rows of just the ladies and just the gents. One way to accomplish this is to have the men kneel and the ladies stand behind them. Add the kids in front and you'll have a visually appealing shot. If you'd prefer the men to stand, have the ladies sit on small chairs or stools.
Another great way to fit everyone in to have the ladies stand in front and the men behind them forming two lines of people. The men can stand on something higher than the ladies so that they are easily seen in the photo, like risers or steps. The ladies can hold their flowers in front of them to add some interest and color to the shot.