How to use a webserver as front-end to AppManager8?

I'm evaluating AppManager build 8100.
Did set up a site in IIS 6 with nice domain name and isapi_redirect.dll.
Then tried to uncomment AJP connector in bundled tomcat's server.xml but it's getting commented out on each AppManager's service start. :(
What is am.webcontainer.port=18009 in AMServer.properties meant for? It seems not to be used.

BTW, both AMServer.properties and http://manageengine.adventnet.com/products/applications_manager/applications-management-productfaq.html Q#21 have notion of httpd.conf which is not present in AppManager8.

I've also noticed that am.mysql.port and am.rmiregistry.port are changed on each AppManager restart.
http://manageengine.adventnet.com/products/applications_manager/help/administrative-operation/server-settings.html says that am.webcontainer.port can also be changed, but this is not acceptable in case of using front-end server connected to this port.
Is there any way to force the ports to be fixed?

Vadim Kopichenko