I'd be happy to - how can I upload a save file to the forums? EDIT: Oh, hey, it fixed itself. His ship didn't show up when I started straight for Neketaka, but just as I was sailing for Fort Deadlight to pick Serafen up, his ship approached mine. Weird.
Is there any way I can get him back? Is there a console command to spawn him directly into my party? I've played this part of the game before, so I know when he's supposed to show up, but his ship just never came after me.