It's somewhere under I, here found it. Internet Sharing using Cross-Over cable
1) Do you have a working internet access connection? Is yes, Good.
If no, Bad
for internet sharing.
2) Do you want to connection Pc to Pc with cable? If yes, Good.
If no, also Good
cos you will still need to go through the steps for internet sharing.
3) Do you want your second internetless Pc to have internet through the means of bridging? If yes, Good
. If no and if no also for point 2. Then don't use the tutorial.