Placa wireless

ESTOU TENTANDO INSTALAR E CONFIGURAR UMA PLACA WIFI NO RED HAT ENTERPRISE V.4.
MAS NÄO ESTOU CONSEGUINDO CONFIGURAR CORRETAMENTE.
ESTA DANDO AS SEGUINTES MANSAGENS:
ALGUEM SABE COMO INSTALAR ESTA PLACA OU RESOLVER ESTE PROBLEMA?
EU ESTOU TENTANTO INSTALAR ESTA PLACA COM O ndiswrapper.
Eu não sei o que fazer, é para trocar a versão do ndiswrapper ou do drive?
se for o drive eu ja estou usando o ultimo!
O ndiswrapper ja esta na versão 1.8.
O que fazer?

iwconfig -->
lo no wireless extensions.

eth0 no wireless extensions.

sit0 no wireless extensions.

Warning: Driver for device wlan0 recommend version 18 of Wireless Extension,
but has been compiled with version 16, therefore some driver features
may not be available...

wlan0 IEEE 802.11b ESSID:off/any
Mode:Auto Frequency:2.412GHz Access Point: 00:00:00:00:00:00
Bit Rate:11Mb/s Tx-Power:20 dBm Sensitivity=0/3
RTS thr:2432 B Fragment thr:2432 B
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

dmesg -->
ndiswrapper version 1.8 loaded (preempt=no,smp=no)
ndiswrapper: driver netdlwl (D-Link,05/23/2003,5.140.0523.2003) loaded
ACPI: PCI interrupt 0000:00:0f.0[A] -> GSI 3 (level, low) -> IRQ 3
ndiswrapper: using irq 3
divert: allocating divert_blk for wlan0
wlan0: vendor: 'D-Link Air Wireless LAN Adapter '
wlan0: ndiswrapper ethernet device 00:11:95:21:04:43 using driver netdlwl, 1186:3300:1186:3301.5.conf
wlan0: encryption modes supported: WEP

iwlist wlan0 scan -->
A placa acha as antenas e da a msg:
Warning: Driver for device wlan0 recommend version 18 of Wireless Extension,
but has been compiled with version 16, therefore some driver features
may not be available...

lspci -->
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 91)
00:0e.0 Communication controller: Agere Systems V.92 56K WinModem (rev 02)
00:0f.0 Ethernet controller: D-Link System Inc DWL-510 2.4GHz Wireless PCI Adapter (rev 20)
01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 4000 AGP 8x] (rev c1)