Howto install ports collection?

[Nagy László Zsolt]

  Hi gurus!

I have a remote FreeBSD computer (RELEASE 4.7 stable). It is on the 
other side of Earth. I can access it only with ssh.
It is really a base system. The ports collection (/usr/ports) is 
entirely missing. I'm familiar with installing ports. But I have
no idea how to install the ports collection using only an ssh shell. 
Please give me a direction.

Thanks in advance,

    Laci 1.0