the alternator has 2 bolts i believe, one to loosen it and the other to keep it in place. loosen both and afterthat.
basically just trying to put on the belt right?

i usually use a prybar to push the alternator away or towards your i just couldnt remember. anyway you'll know which way to go coz your basically tightening up the belt. dont tighten it too much coz u might have overcharging issues,