Mishandled,
You say you get on the network but cannot access the internet, correct ?
In that case have you set your DNS server address from your ISP in your tcp/ip settings ? This would explain the problem.
If not it would be helpful to have more info, can you ping any internet addresses/ your DNS server ?
If you goto the command line and punch in 'ipconfig /all' and paste that here it might provide more info
Z1