You set it in place and run the two bolts in, then attach the two wires.
I have a feeling there's more to the problem than that but you didn't bother to give any details. Do you have the old starter out to look at? Why are you installing a starter? What were the symptoms? The procedures are different for the different engine sizes but you didn't list that either. Without anything to go on, go to the dealer and order the service manual. It will list all the steps and include drawings. The guys at the dealership I worked for would even photocopy pages out of their service manuals for you.