It looks like the GNOME sources were likely not compromised, so they should be back on line soon. Herein is an updated announcement from the GNOME Project. . . .

On Tue, 2004-03-23 at 13:52, Owen Taylor wrote:
> We've discovered evidence of an intrusion on the server
> hosting www.gnome.org and other gnome.org websites.
> At the present time, we think that the released gnome
> sources and the gnome source code repository are unaffected.
> 
> We are investigating further and will provide updates
> as we know more. We hope to have the essential services
> hosted on the affected machine up and running again as soon 
> as possible.
A quick status update on the situation:
 * No additional damage has been discovered; at the current
 time we are cautiously hopeful that the compromise was
 limited in scope.
 * ftp.gnome.org is back on now that we have additional
 confidence in the integrity of the tarballs.
 * We've now restored a number of services running on a 
 replacement machine
 - Websites including www.gnome.org, and developer.gnome.org
 are back up in limited service; dynamic content is still
 off so some parts may be inaccessible.
 - planet.gnome.org is again providing all your favorite
 blogs and gossip.
 - Bugzilla is in testing mode; we hope to restore general
 access in the next day.
Thanks for your patience; we'll continue to provide updates
as we move back to fully operational status.
The GNOME sysadmin team
24 March 2004