Note that these last two packages are just an easy way to get the Sun Java package; as well as the MySQL connector required for MySQL database use. You may choose to download the appropriate packages from their respective sources. If so, navigate to the Sun and MySQL sites and do so.
Install JDK 1.6
Navigate to the Sun site and acquire the java binary package. To do so, proceed with the following procedure:
In the Centos 5 GUI, you need to change the firewall settings to open TCP port 8080.
You can also do this by editing iptables from the command line, but using the GUI seemed to work better for some reason.
You may need to restart the system. I was doing some troubleshooting post-install, and everything worked fine after the restart. Correlation is not causation, and you should not have to restart the machine, but if the install is not working, you might want to try it.
You should now be able to see the Alfresco start page by navigating to: