Internet sharing on OS X Server 10.4 Helpppp!



I have an X Serve... and have an ADSL connection connected to ethernet 2... (with the address of and the rest of my network connected to ethernet 1, with the server running DHCP.

The server can access the internet totally fine, but none of the computers on my network can. They can connect to the server fine... map network drive, etc etc... But just can't use the internet.

Any ideas?!?!?! Pleaseeee.....