Tomcat displays IP instead of DNS name

[Joshua Gregoire]

Hello All,
 
This is my first Tomcat install, so sorry if this is a dumb question.
 
Server Information
Windows Server Standard 2008 Service Pack 2 64bit
IIS Version 7.0.6000.16386
Tomcat Version 6.0.24 64 bit
Isapi_redirector 1.2.30 amd64
 
I have my site up and running in Tomcat.  I also have IIS sending requests to 
it, however, I can't get it to display the dns name.  
 
Example
Type http://r18test2.kcc.edu brings up 
http://10.10.11.90:8080/WebAdvisor2/WebAdvisor2? 
 
The site works correctly, just want it display the url 
(http://r18test2.kcc.edu/WebAdvisor2/WebAdvisor2?) and not the IP.  I'm sure I 
just have a configuration set wrong somewhere.  Any help or a link to a similar 
post would be much appreciated!
 
Thanks!
Joshua Gregoire