Final Beauty VI

Couldn't find any info on how to track down the Trade League Convoy once they've left the center, does anyone know where to find them? I started following them but got side tracked after a few jumps and when I went to the sectors they said they jumped to, there was nothing. I tried a search on the galaxy map for trade league but nothing showed up. It says I completed the quest to go with them or whatever, but now where are they?