This is a zip file so you have to have a zip wizard installed in your PC to... unzip it.
Here are the Basic steps
download the driver into your favourite Hard drive perhaps marked 'modem' or something. make notes. (sorry I elaborate but for the sake of anybody new at this I have found it is not obvious at first... so there!)
Ok ,now, In your control panel go to Systems then find your 'old' PCI modem and delete it(if any). reboot your computer. It will find your new modem asking you to install a driver for it. select your downloaded driver from your hard drive from the browse bottom and go for it...The rest may be the final settings with your server etc... It has worked for me and I hope it will and has work for you too.