You can put your sponsors in a specific order by assigning each sponsor to a level.
In the sponsor settings area, click the 'settings' button in the top right corner.
Check the box labeled 'order sponsors' and add your desired levels in the box below, one level per line. If you have 8 sponsors you want to order, you could use the numbers 1-8. You can also put multiple sponsors in a level, like gold, silver, and bronze.
In the sponsors settings, click 'edit' next to each sponsor to assign it a specific level.