You can upload files directly to the server if you configure it using FTP. You could upload the files using an FTP client or you could upload them through the filemanager which can be accessed from the cPanel. By the way, this thread should have been posted in the Site Management area.
Get ahold of smartFTP and install. Then access your cpanel and click ftp accounts, it shows you the stuff you need to enter into your client, such as username/host/ etc...
Click connect and your logged into your web server.. then just upload your files into the WWW folder.