More as a reference for myself, the basic steps to FTP files through the Command Prompt:
C:\Documents and Settings\tburger>ftp
ftp> open yoursite.co.za
Connected to yoursite.co.za.
220 Microsoft FTP Service
User: theab
331 Password required for theab.
Password: [type password]
230 User theab logged in.
ftp> ls (lists all files in current directory)
200 PORT command successful.
150 Opening ASCII mode data connection for file list.
aspnet_client
bin....
photos...
ftp> cd photos
250 CWD command successful.
ftp> put "C:\Photos\Test.jpg"
200 PORT command successful.
150 Opening ASCII mode data connection for T1.jpg.
226 Transfer complete.
ftp: 13647 bytes sent in 0.00Seconds 13647000.00Kbytes/sec.
For a full list of commands go here...