The way I see it, it's probably working like this.
The old post has been removed, but the dude who did the work with this new tracker apparently told Eric that the old torrents would still work... I'm reposting mine and closing the old threads to keep things up to date and simple.
My guess is that several people completed (or are ahead of you) the last download (from the old tracker), and are still connected, even though I have reposted... they are essentially on a "different site"... even though both trackers were for this one. I have a feeling that I am seeding anyone who downloads the new torrent that I have attached, and that you are still receiving data from everyone connected to the old torrent which isn't even posted anymore.
In either case, you should be able to get the whole show from those seeds... and if they drop off, all you would need to do is download the new torrent attachment, and save to the same location. You should pick up right where you left off, only using the new tracker. But I wouldn't bother unless you stop moving on the other one or something.