[Rob Colatutto]

you will need 2 ethernet cards in the main computer, the xp one, and the cable modem (or any other boradband) goes into the card on top, then put the crossover cable into the second adapter, and into the second computers main ethernet adapter. then you have to go into your connection settings, and edit local area connection 2, then go to the properties in it, go to the advanced tab, enable "allow other network users to connect through this computers internet connection" and disable "allow other network users to control or disable this option" and your all set. thats how i do it, works very nicely