This laptop is wireless enabled, so it should work 'straight out of the box'.
I am not wireless techie enough to give details though - some laptops have a wireless 'on/off' type of switch, but in not in your case I believe. Make sure the wireless adapter is firmly in place in the slot.
I am sure someone else will come on and offer further advice.
Hmm, I don't think Proxy Server should be ticked. Going by memory, which is not so good these days, I don't think Proxy Server was ticked when my partners laptop was connected wireless to my PC. It was a while ago and she is not here at the moment.