electrical gremlins

first off i shouldve said when i pulled the starter i noticed one of the terminals had turned and ground out on the block, ive fixed that and now im trying to go through your list, quick question, with my multimeter i stabbed the wire on both ends of the fuseable link as it is wired up in the car and i am getting conductivity, so i wanted to confirm it is good, or is there a chance im getting backfeed through the system fooling me into thinking the fuseable link is good? or can i move on down the list assuming it is okay? i just dont want to move on if it could be the problem...