As far i can tell you have a 32 bit windows 7 so here is the driver, click on show all then 2 things will appear 1. the driver 2. the installation wizzard, I don't know if the wizzard is needed... so first download the driver and if it works fine then you are done!
Cheers!
My Computer
At a glance
Windows 7 Ultimate 64 bit SP1Intel(R) Core(TM) i5-2500K12GB Kingston Hyperx 1600MHzAsus GTS 450