Write data to an FTP server using Adafruit fona

Hello,

I'm trying to create a datalogger which updates a .txt file on a private ftp site. I'm using an Arduino Uno and an Adafruit Fona.

I've gotten the Fona to send me text messages but I'm completely lost on sending data to my ftp server. I can't find any tutorials online and the forums posts I've found on the subject aren't making any sense to me.

Can anyone point me in the direction of a good tutorial or give me something to follow?

I know I need to do at least the following:

  1. Initialize the Fona (this I can do)
  2. Log onto my FTP site with username and password (??)
  3. Append my .txt file (??)
  4. Close out of the FTP site (similar to a cmd line "bye")

Thanks!