Freebsd 5.4 cannot fetch xfree86?

[perikillo]

  Hi to all.
    I install freebsd 5.4 Release, with xorg i have problems with my
kbd, and i decide to install the old friend XFree86-4, i read the
handbook about, the example say:
test# pkg_add -r XFree86

   But my system dosent found nothing, the answer is something about
"Cannot fetch xfree86 packages from ftp.freebsd.org.

   There is something else i need to do? or where i can change the
default URL? OR wich URL have those pakages ? Any help i will
apreciate.

    Thanks to all.