ok, did that ipconfig/all here are the results:
as far as gateway, dns both working pc's have the same , the other one, the one in question didnt have a dns or gateway, i went manually configured to the one that the others pc's use to go online and same thing i conect to the router but cant share the internet conection??? This pc that dont work with the internet is a 450mhz, now the specs for the nic says a minimum of a 500mhz processor, but i think this dont matter cuz if that was the problem the nic wouldnt even conect to the router and show it works, since i can transfer data, i just cant for the love of God find what the heck is wrong.