See
http://ci.codehaus.org/cruisecontrol/
The source for that page refers to 'localhost:8080' which is how the app is actually launched.
<title>CruiseControl Status Page</title>
<base href="
http://localhost:8080/cruisecontrol/" />
<link type="text/css" rel="stylesheet" href="css/cruisecontrol.css"/>
If the pages were coded to have relative links, then all would be fine.
- Paul