Help to fix my ATI drive

hello everyone
sorry for a bad English (not my mother tongue)
i really need a big help
i already did all possibles tutorial to install my drive and no way to make it works my problem is i have a HP pavillion g7-2160sf and not even on windows is possible to install the ati drives from AMD just works with the one provided by HP

but i really want to use fedora and i'm completely lost right now

my ati drive is a radeon hd 7670M
on discrete mode with a intel one

after the install the F17 find out the intel ivy bridge as graphic card

and the the bios has no option for change the graphics

so even if is not possible install the 2 drives and anyone has a solution to work with just the ATI one is perfect for me

thanks in advance