The file to change is server.xml located in AwareRoot/Tomcat/conf. Search for 8080 and change the line starting with
<Connector port="8080"
You may also want to change the UIConfig.props file located in the BIN directory to include the following line:
OperationMode = http://localhost:portNo/AwareIM/logonOp.jsp
This only affects where the Configuration Tool goes when you press the Operation button. The main change is the first one - it will force Tomcat to listen to a different port.