Help! I Fried something

So is the fusable link that little plastic block thing on the firewall? There is a wire on the firewall that says "Fuseable Link" on it but it does not go to the white plastic thing, and it looks OK from the outside. I guess the first thing I need to do is have the altenator checked. Then I need to make sure I wired it up corectly. Anyone have a pic of a single field alternator hooked up?