Post the exact link where you got the drivers from, not just the main IBM page.
Well When I Go On That Page Its Says IBM S-50 8429-KG7 At Top.
That's because you did the proper search for it there already and your browser has it saved in your cookies. The link won't work for anyone else. Link directly the network drivers you are trying to use.
Has this worked before on the computer? The network card could have gone bad.