State your hardware layout
like internet----cablemodem---router( band/model & ip )---pc( ip & mirc dcc ports ) or what ever it is.
From what i have seen of FNar's posts I have the feeling he knows what hes doing, so it might just be that your missed soemthing or hes forgotten something thats normally (99%) always set etc.
From what I understand right now your trying to get your mirc to be able to send files & initalte chat/fserv sessions (aka file server)
