1. The HTTP request is not being directed straight to port 8080 from the firewall. I checked in the internal server to verify that HTTP requests were bound to port 8080.
2. If I append :8080 to the domain, I am directed to port 8080, and any files on the root directory of the site.
3. If I try to access files on any subordinate folders (like /img) or logical folders created in the Window Media Server, I get a 404 Error. If I do not explicitly state the port for the request, I get a generic 404 Error. If I append port 8080, I get the custom 404 page we have at that site.
4. Just to make sure there wasn't a problem with our server, I sent a request for a WMS file from within the firewall and it resolved correctly.
5. The service I choose for the NAT rule makes no difference in behavior.