Mine has power steering but halfords still gave me a belt that was a bit too small, i went to GSF with the original belt and the first one they brought out was wrong too, but it was measured there and then so he went back and got the correct one.
And yes, it goes around the crank pulley. Three pulleys in a triangle.
The other belt goes around the 2 remainding pulleys.
Do you still need a pic?