how to network 2 computers?

hi all
all this network business is new to me,
i just purchased a new computer a AMD 2100+ and it had Win XP on it, i have my old computer the P3 800 connected to ADSL internet.
Now i want my new computer the AMD to be able to access this internet from the P3 800.
i purchased the Asus A7V8X mobo which has built in LAN and i purchased a network card which i put in the P3800
i also got a 2 metre network cable and connected the two computers up,
but i am at a loss as how to get the AMD access to the internet,
i tried the XP network wizard but still cant get the AMD to access the internet.
The P3 800 computer has the PPPoE protocol
regards
Clayton
all this network business is new to me,
i just purchased a new computer a AMD 2100+ and it had Win XP on it, i have my old computer the P3 800 connected to ADSL internet.
Now i want my new computer the AMD to be able to access this internet from the P3 800.
i purchased the Asus A7V8X mobo which has built in LAN and i purchased a network card which i put in the P3800
i also got a 2 metre network cable and connected the two computers up,
but i am at a loss as how to get the AMD access to the internet,
i tried the XP network wizard but still cant get the AMD to access the internet.
The P3 800 computer has the PPPoE protocol
regards
Clayton