what do you have for list name?
I'm running it now. I'm logged in to the account I'm buying on in my browser and it's working fine at buying. Will comment again when the reading starts.
Buying worked fine, failed when reading.
Basically, put the file and the booklist .txt file in the same directory - when it asks for the name type out "books" or whatever you call the .txt file (i believe the default is "books")
It purchased books on my book list just fine - I only tested it with the cheapest books I need but it bought 48 of them and then had the error. Even if I had to read manually (which I did for those 48), it's a lot faster than finding the books myself!
Oh,and thanks Strategist - I AM blind then!