From NCH Software:
Classic FTP Plus for Mac is an easy to use ftp client to view, manage, edit, upload, download and delete files from a remote server or network. As the name suggests, Classic FTP has been specifically designed to look and feel like a typical ftp software client. While offering all the same features as other ftp clients, Classic FTP is perfect for both advanced and novice website administrators. Complete with useful features like "Mirror and Upload" to synchrozinze local and remote files, and synchronized navigation to reduce the risk of uploading files to the wrong folder.
After my FTP program (CuteFTP) died on upgrading my Mac, I opted for Classic FTP which looks and runs in a similar fashion.
Classic FTP needs quite a bit of computer knowledge to find files & folders I found but as I have only used it twice I can't claim expert knowledge