TNG podcasts are now up to date as well. I honestly don't know how seasons three and four slipped through the cracks. Seasons 1 and 2 were all converted the new server links. Perhaps I was distracted by something shiny. It happens.
In any event, all the links should be working. I am choosing to take it as a positive sign that I got notified right away by a commenter I didn't recognize. I guess that means we're getting more popular. Excellent!