Is there any game patch/utility to be able to host games using a router in wormnet 1 and 2??,coz on wormnet 3d i can host games(in worms 4 and wormd 3d),but here i cant because i cant let the game use the port 80 coz the router uses it to share internet...wht can i do?

Port 80 is used for HTTP connections and should be open on the router anyway.

What you need are incoming connections on port 17011, which you need to forward to your computer's internal IP address.
Check out this router tutorial (http://www.nanacide.com/wahelp/wnguide-router.php)!

i had already open the port 17011 on the router...i test it and it is really open but i cant host games anyway =/

read this (http://forum.team17.co.uk/showthread.php?t=16656).