You are not alone: but I think this may be to do with your spam settings. I had to check in my spam folder the other day for something and I found loads of notifications!! You may need to configure your spam settings.
I also have to update my podcast everytime I download, it used to download automatically, whats going on there It says on the video when you try to download that it couldnt be found on the server, so maybe it has not been moved over to the new server yet.