n00b needs GNOME 2.8 upgrade help

[Jason Trickett]

   Hi. I just installed FreeBSD 5.3 into a MS Virtual PC disk. I got
   GNOME working and everything seems fine. I was reading about upgrading
   to GNOME 2.8 but I'm kinda confused; I ran "pkg_add -r gnome2" but was
   told I already had the latest, which is 2.6.2. So how do I get 2.8? I
   do have some unix skills so I'm familiar with using the CL -- I just
   found the manual really confusing. Hopefully someone can offer some
   help.
   Thanks in advance.