Do you have any firewall software running?
What do you mean by it wont listen to the ip address of the computer it is installed on? Are you trying to connect from the same machine or a different machine.
Can you ping based on IP and name?
You shouldn't need to look at the Tomcat configuration files, on a machine that is already correctly configured on a network it should be accessible.
If your machine is a Linux machine what is in your /etc/hosts?
To display XML you need to wrap it using the [ code ] tags.