Sorry I am not sure which URL doesn't work. Please email your URL to DriveHQ customer support.

It is strongly recommended using Folder Publishing vs. File Publishing. Folder Publishing is designed to publish many files in the folder at once.

In your case, it is also recommended using Web Publishing than vs. File/Folder publishing. You only need to copy your files to the wwwhome folder. Files in your WWWHome folder can be linked as:

http://USERNAME.drivehq.com/FILENAME