hey all. I have been trying to find a way to change my alternator belt. I undo the bolt but the alternator does not budge. Is there a tensioner somewhere?

Look for the "adjusting" bolt underneath the alternator. The whole set up comprises of two bolts, one that attaches to what looks like a block, and one that is threaded through the block. Loosen the bolt facing left (the one that goes into, but not through the block), then loosen the bolt that faces the bumper/radiator (the one that runs through the block).