I've also hit this fairly recently and wondered when 1.4.7 will be pushed out to general release.webif beta 1.4.7 should restore thetvdb integration.
I used /df's idea of just calling out to
wgetfor the downloads. Other changes were needed because both the zip and xml format in the downloads had changed, and the location of some images. Fun and games.
I'm happy to test the TVDB integration in the 1.4.7 beta version if that helps, but I don't know how to get hold of it...