nubie question - Ports - Ruby 1.8.4

[Bakki Kudva]

Hi,

I am learning FreeBSD by installing it on my laptop. I would like to
install Ruby 1.8.4 which is listed at http://www.freebsd.org/ports/ as
follows:
ruby-1.8.4_6,1
    An object-oriented interpreted scripting language
    Long description | Sources | Main Web Site
    Maintained by: ports at FreeBSD.org
    Also listed in: Ruby, Ipv6

However when I go to /usr/ports/lang/  (I installed ports off the ftp
site) the version I see there is 1.8.2. How do I install the later
version? Thanks for your help.

-bakki