1995 Buick Lesabre Tensioner
 

Could someone show me pics how to get the tensioner off step by step was trying to replace alternator and it broke, I'm talking about the piece that's on the serpentine pulley system right next to/ with the power steering unit. I would like to see pics of how to get that off because I got all the bolts I could find out but it still won't come up, also please feel free to correct me on terms of I called it by the wrong name. Also I'd like to stress again this is on a 1995 LeSabre. Thank you so much!

This is a pic
 

I took a pic so everyone can see what part im talking about