Internet connection sharing for newbies

[kypher]

Hi guys / gals,   I'm a newbie Linux user and have a home network setup with 1 x Win ME box & 1 x RH7 box.  RH7 has the internet connection using an external 56K modem.  I want to enable the Winblows machine to access the internet via the RH7 box.  If someone could point me in the right direction I would be very grateful.   Thanks     Karl