IIS Server behind CFP

Hello,

I just d/led and installed CFP lastnight. I searched the forum but was unsuccessful in finding my answer.

I am running WinXP Pro and IIS Server. How do I allow access to my webserver from the outside of my network. It seems like Port 80 request is being blocked. I have anoterh File Server on Port 81 and that one seems to be accessible outside of my network.

TIA.

Regards,
Xagor