By default, there is no FTP daemon installed, but you can install one, for example:

apt-get update
apt-get install ftpd

On the other hand, there are other ways of transfering files to the appliance, via the webmin upload option or via SSH (some ftp clients support a "secure ftp" option which uses SSH).

I personally prefer using ssh+rsync, see this forum post for some more info.

Hope the above helps.
Good luck!