If you need to get started with an FTP client, a great option is offered by Ipswitch File Transfer.

WS_FTP Professional secure FTP client

WS_FTP Professional:

• Perfect for updating a website, business and advanced file transfer users
• Transferring valuable data securely
• Building web sites & moving large files
• Works over SSL, FTPS, SSH/SFTP protocols
• 256-bit AES, SHA-512, OpenPGP security capabilities
• New for Version 12 – All features of the Home version, PLUS: Built-in OpenPGP Local File Encryption, FIPS 140-2 Validated Cryptography, Non-Repudiation & Compression with MOVEit DMZ Server, Digitally Signed Application from Trusted Certificate Authority.
  
  Buy WS_FTP Professional
  Download a 30-Day Free Trial of WS_FTP Professional