Maybe...
I might have figured out what is wrong with my uploading.  I don't think it's my service provider, but my modem.  So I should have a new one next week.  Unfortunately it will be after I need to upload the podcast, but this will be fixed.  I've just been hesitant, as we'll be leaving Germany in August and have to buy a new modem when we get to the States, as our European one won't transfer easily.  Hopefully this will fix the problem.