FTP to your domain name. Use with the username and password that was assigned to your site. That will land you in your account. That's where your website goes. When uploading images, use binary mode.
File names are case-sensitive.
Blocking Call Cancelled is an FTP error message that occurs when a file transfer terminates due to excessive data errors. To solve this problem, first check to make sure your phone line is free from static. To check this, plug a phone into the phone line you use for your modem. If you hear static on the line, report the problem to your phone company to have it corrected. Then try uploading your files to the server.