Hi,
UCP on Cisco ACS 5.1
1. Use command acs config-web-interface ucp enable on ACS console.
2. Install Apache Tomcat (http://tomcat.apache.org/download-60.cgi) and J2SE on dedicate web server.
3. Download UCP example from ACS web console (System Administration > Downloads > UCP web application example).
4. Extact UCP.zip and put it into the Apache path (Ex. C:\Tomcat 6.0\webapps\ROOT\)
5. Restart Apache service.
Good luck,