Hi Alonzo,
There will not be an issue with iis and tomcat are running on same machine unless they use separate port.
From browser go to http://server:8080/ and http://server:80/ If your tomcat port is listening on 8080(default port for tomcat ) you should get tomcat page. Then you can access http://server:8080/BOE/CMC . For configured port you can see Drive:\Program Files (x86)\SAP BusinessObjects\Tomcat6\conf and open server file. It will give you port number used. You can try this port to open ur cmc
Regards
Mahesh Kumar