installing ssh after freebsd has been installed?

[g]

how do is install ssh once i've installed freebsd 6.1?

i used sysinstall.  check ssh in the networking section.  ok'ed my  
and exited my way back to the system prompt.

as root i typed /usr/sbin/sshd

i get from the system:

Could not load host key: /etc/ssh/ssh_host/dsa_key
Disabling protocol version 2. Could not load host key
sshd: no hostkeys available -- exiting.

do i need to reinstall the os, 6.1, in-order for it to setup ssh and  
create those files, ssh_host_ ...?

g.