We don't actually host drivers here, we simply advise members where to go to download them - which in most cases is the member's laptop or computer maker's website.
Please go to the UK Gateway support website here and enter model number or serial number of the laptop: http://www.emachines.co.uk/ec/en/GB/content/drivers
I can't give you a direct link to the drivers page for your PC model because the page uses iFrames.
The website was very slow a few minutes ago so you'll have to be patient.
Another point, don't overlook the scroll bar on the right, you'll need to scroll down to see the driver you need (Broadcom Wireless LAN Driver).