ftp driver for Apt-0.30 missing

[buns]

Running slink and upgraded apt 0.1.9 to apt 0.30.

Using dselect-apt with /etc/apt/sources.list pointing to an ftp download
site will give an error message that the ftp driver is missing from
/usr/lib/apt/methods. Any idea why it's missing and how to resolve it.
Currently I am getting around the problem by specifying a http download
site instead of an ftp site.