1. Go to Device Manager (Start -> type Device Manager and press enter).
2. Select the device for which you have downloaded the drive, right click and select "Update Driver Software".
3. Select "Browse my computer for driver software"
4. Browse to the location where the .cat file was downloaded and select it.
I think this tactic can be used for the other files as well. It's slightly difficult to find all the info though since I am using a laptop @work were most websites are restricted. If you google how to install those files though im positive theres plenty of guides online, sorry I couldn't be of more help.