You need to enter

Server URL = http://www.myvideostore.com
FTP Server IP = 120.120.120.120
FTP Server Username = videoftp
FTP Server Password = 123456
FTP Server Folder Name = public_html
We enter folder name as public_html as cpanel servers need files uploaded to public_html folder, then only files can be downloded from the url
What if we have created an ftp account that only loads the destination folder? For example, I want to create an account that only has access to mysite.com/flv_storage/ and can not navigate to any other portion of the server. How would this effect the settings? Can I leave server folder name blank?

Also, what happens if I enter 5 different servers - does it select one at random or what?