Hey Joannah,
I *think* that I know the issue here. It seems to me that maybe you are in the Public Feed rather than the Basic Feed. The Public Feed will only contain the pdf files for the first two lessons. Were you prompted to enter your user name and password? If not, try this link (it will open in iTunes) :
itpc://www.ChineseClass101.com/basic_feed/feed.xml
You should be prompted to enter your credentials. I think this should work for you, however if not please email me at
Good Luck!