Atheros ar9285 leopard 10.5.7

[patsix]

Hello from France,
I installed Leopard on Samsung RV515, AMD processor, (IATKOS V7), and I can't use WIFI.
AtherosAR9285 is not detected
I installed IO8011Family.kext and DeviceMergeNub_atheros.kext but in Preference panel, network, I don't see my airport card.
I used Kext Utility, without any result.
Any idea to solve my problem?
Thank you for your help