A few tutorials how to upload and manage your files with WS_FTP:

Configuring your site in WS_FTP
Create a new site, Deleting an existing site, Modify an existing site, Setting startup preferences, Creating a new folder.

Transferring files in WS_FTP
Setting options, Viewing file contents, Upload/download files, Setting file transfer mode.

Managing your files in WS_FTP
File sorting preferences, Renaming directories, File display preferences, Creating directories, Viewing files/directories, Deleting directories, Changing directories, Setting file permissions.

If you need to download the program WS_FTP you can do that for free (Evaluation Copy) by clicking here