There are many examples of the required 3 .csv files attached to the Original Post.
This plugin will not do anything at all unless the attached supporting files are downloaded and located exactly according to the instructions. Below is the link to the OP attachment itself. Click the link to download it.
https://www.mobileread.com/forums/att...6&d=1406980979
Forum rules allow only one (1) .zip file per OP (i.e., the plugin itself) so that the Calibre plugin scraper will not be confused. So, this is a .txt file that is really a .zip file. Download it, and rename it to a .zip extension. Extract the files according to the instructions.