mirror update

[AN]

Is there a way to get a mirror to sync up with the latest packages?  For 
example, according to http://people.freebsd.org/~kuriyama/mirrors/ 
ftp13.us.FreeBSD.org is 53.8 days old.  And the version of Gnome in 
ftp://ftp13.us.freebsd.org/pub/FreeBSD/ports/i386/packages-7-stable/gnome is 
gnome2-2.22.1.tbz  04/18/08  22:33:00.  So, the mirror seems to be about 2-3 
months behind, is it possible to update it?

TIA