Check your CiscoWorks service startup parameters, and make sure that the only ones that are set to automatic are CiscoWorks Daemon Management, RCP, RSH, TFTP, and the IPM services. The rest must be set to manual. If anything needed changing, reboot the server.
If the services are correct, run "pdshow Tomcat" and make sure it is running. In either case, the NMSROOT\MDC\tomcat\logs\stdout.log should have more information.