How do I log in to another host via GDM greeter?

[Msquared]

Hi!

On previous Fedora machines, I could log in to a different machine via
XDMCP by pressing 'F10' then selecting 'Remote Login via XDMCP'.  However,
the new greeter seems to have almost none of the features of the previous
greeter.

Can I enable this somehow, or install the older greeter?

Also, how do I enable XDMCP on a Fedora 9 machine so that I can log into
it from another host?

Regards, Msquared...