My Toshiba Equium A100-02l won't connect to the...

Question

Hey new to this, but remember me?
My Toshiba Equium A100-02l won't connect to the wireless internet (wanadoo) that other laptops and computers in my house do. Ive tried plugging it straight in and that didn't work either. Has it got anything to do with vista?

My laptop has worked at uni all last year, its when i get home it won't connect to the internet. I'm not clever when it comes to computers.. i am the administrator but how do i check the network adapters are installedThanks