Sounds like a PASV issue. Try one of the graphical clients ( a free one is available at
www.smartftp.com ) or the internet explorer
ftp://ip.ip.ip.ip option.
You can turn on/off PASV in the internet explorer options.
If that gets you farther, or doesn't, let me know.
Additional questions:
Are you trying to connect from outside the network?
Is there any firewall or anything at all between the two systems?
If there is, make sure the ports are mapped/open to allow ftp access.
I only ask because it's not 100 percent clear if you are inside the network you are trying to FTP into. :_)
You might also check the file
/etc/ftpaccess
and make sure it's not limiting to 127.0.0.1.
Hope that helps!