The driver packs are those created by Bâshrat the Sneaky (BTS) and can be found at http://www.driverpacks.net
The driver packs should be placed in the location that is specified in the drivers area of the Preferences screen.
When the screen is first opened the default packs will be highlighted. It is possible to select further packs and this will be used in this and subsequent runs until the application is restarted or until the packs are deselected.