What was wrong with this thread click here ??
You will need to add an ethernet card to computer 2 (cost < £10) and then could use a Cross over cable (cost ~£10 for 10m cable) to connect the two.
You would then just need to enable file and print sharing, put both computers in the same workgroup and away you go. To use one internet connection will involve setting up ICS.
Get the network bit sorted first then post if you have problems sorting the extra bits.