I'm not sure if my laptop (Sony VAIO) came with built-in wireless transmitter. I'm using Windows Vista and it doesn't detect software for my Verizon Wireless Express Card. Our internet provider at the office is Clearwire, but I'm not positive I'll be able to get wi-fi there to allow me to install Verizon software.
I have installed the same software on old laptop (also Windows Vista) in 2006. It just shouldn't be this hard.