ICS & IIS

This may be a duplicate posting - sorry if it is.

I've set up IIS 5.0 on my XP Home system which is an ICS
client for another XP Home system. I know my site works as
I can see it from the ICS gateway (http://192.168.0.165).
How do I set up the gateway to send use port-forwarding so
that if someone types in the address of the gateway into
their browser, they see the page hosted on the client?