I found it easier to just remove the power steering pump and reservoir to get to the alt belt and so you need to remove the bolts to the pump.
You can't see it well, but w/ a trouble light there is the same type of tensioner on the alt as there was on the p.s pump. Just loosen it until the belt is removed. Reverse the order to replace the new belts and then check to see if you get any power steering back from additional grip of the new belts. That's the only thing i noticed was a 20% increase in the ease of my wheel, besides the peace of mind knowing they won't break on the road.