No connection could be made because the target machine activ

Hi,
I just got a new computer and am trying to log into etree01.archive.org, I am using anonymous as a log in and my email address is the password. Port 21?? Any help as to why I am still getting the message No connection could be made because the target machine actively refused it??
Thanks!!

Does it allow anonymous login? Could it have too many users when you try to log in? Can you access it with other FTP tools?