To SFTP files to our service, use the same hostname that you use for ssh, not the one you use for FTP. You can get this hostname by clicking the "Sites" tab at the top of the page, then clicking the site name from the "Your Web Sites" list. The hostname will be listed under "SSH/SFTP Information." For convenience, we have created an sftp.xxx.nearlyfreespeech.net alias, where the xxx part is the same for you as it is for ssh and FTP.