Use correct layout classes on commercial MSM pages

### Before

![screen shot 2014-11-13 at 14 23 02](https://cloud.githubusercontent.com/assets/74132/5029636/a4165efa-6b40-11e4-81e4-21da18e416f7.png)

### After

![screen shot 2014-11-13 at 14 23 23](https://cloud.githubusercontent.com/assets/74132/5029638/a90764a4-6b40-11e4-8def-4c281d2469c9.png)