I just checked the files on the server, and indeed the folder inside the Sol.zip file was named Son instead of Sol. The file for Judges was in the same boat. I've changed the folder within the Jdg.zip file so it is now named Jdg rather than Jud.
So, for anyone to do a local installation, be sure to check all folders once you've unzipped them to make sure that they have the correct BW book names as the folder names (Jdg, not Jud; Sol, not Son). Otherwise the links won't work. If you happen to run into any other incorrectly named folders within those zip files, let me know so I can change them on the server.