You sure you downloaded the wireless ones? There are two drivers, one for wireless and one for wired.
For the wireless controller you also need another thing to do.
In Windows 7 in your "Device list" menu you should have TWO peripherals: the gamepad and the receiver.
You need to select THE RECEIVER and not the controller. Then you right click/properties, then you select to upgrade/change drivers, then to do it manually, then you select the path where you unzipped the drivers from Mr. Morii, and then you go on and click yes blah blah.

After that they should work.
You only need to do this for the RECEIVER and not for the controller, otherwise it won't work.