If you have published a folder, then you can use either the HTTP publish URL or FTP Publish URL to access the folder and files in it.
The FTP URL is like:
ftp://ftp.drivehq.com/USERNAME/PUBLISHNAME/FILENAME
The HTTP Publish URL is like:
http://www.drivehq.com/file/df.aspx/publish/USERNAME/PUBLISHNAME/FILENAME
You can find more detailed info about the Publish URL using DriveHQ.com website. Just logon www.drivehq.com, go to My Storage page, click on Publish.
Using DriveHQ FileManager client software, it is even easier to publish a folder and get the publish URLs. Right after you publish a folder, it will tell you the publish URL; you can also right click on a Published folder, or the files and folders in a published folder, then select "Show Publish URLs" to see the publish URLs. You can copy all publish URLs at once.
Using DriveHQ FileManager, you can also find the "Safe Publish URLs". A regular publish URL has your username, publish name, folder name and file name info. A safe Publish URL can hide all such info.