also i did see them on gigabyte page. i did not know what revision you had.
you should use the same version of catalist suite to install it. but i don't think the drivers are different . just the matching #.
i dont know what operating system you have either
hope it helps
motherboard gigabyte: ga-ma790fxt-ud5p bios F8h , amd 965 cpu at 4.0 , sileneX efz-120ha4 cooler, 8 gig patriot pgs34g1600llka memory, xfx 750w power supply, xfx 6970 graphics card, 3-22"1080p monitors , coolermaster HAF 922case, windows 7-64