Please fix /etc/httpd/conf.d/httpd-beacon.conf
I will only fix the httpd configuration file. It seems strange that the http://localhost/beacon/ doesn't work and that http://localhost/beacon/php/ should be used instead.
beacon-0.5-8.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/beacon-0.5-8.fc18
Package beacon-0.5-8.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing beacon-0.5-8.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-0304/beacon-0.5-8.fc18 then log in and leave karma (feedback).
beacon-0.5-8.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.