wi-fi card dell on HP pavillion dv5000 series

Este é o meu portátil descrito em baixo.
já tentei de tudo no meu parco conhecimento, mas não consigo por o wifi a funcionar se eu colocar um catão pcmcia emprestado que por acaso é um asus com chip ralnk 2500,
é detectado e ligado á primeira. Com o do portatil que é detectado mas não funciona.
estou com o ubuntu 6.10
Obrigado
Luis Teixeira

HP Pavilion dv5176eu Notebook PC - Product Specifications

 Content starts here

 Hardware
 Software
 Service and Support
Hardware
Product Name dv5176eu
Product Number EW815EA#AB9 (Portuguese version)

Microprocessor AMD Turion™ 64 Mobile Processor ML-37 with PowerNow!™ Technology
Microprocessor Cache Level 2 cache 1 MB
Memory 1024 MB DDR 333 MHz (2 x 512 MB)
Memory Max up to 2 GB
Video Graphics ATI RADEON® XPRESS 200M IGP graphics
Video Memory 128 MB (dedicated)
Hard Drive 100 GB 4200 rpm
Multimedia Drive LightScribe DVD Writer Dual Format (+/-R +/-RW) with Double Layer support
Display 15.4” WXGA High Definition BrightView Widescreen
Fax/Modem High speed 56K modem
Network Card 10/100 LAN Ethernet integrated
Wireless Connectivity 54g™ 802.11a/b/g WLAN
Modelo: Broadcom 802.11a/b/g WLAN - Miniport do agendador de pacotes
Controlador: bcmwl5.sys

Bluetooth® wireless networking
Sound Altec Lansing® speakers
Keyboard 101 key compatible keyboard
Pointing Device Touch Pad with dedicated vertical Scroll Up/Down pad
PC Card Slots

    * One type I or II PC card slot
    * One ExpressCard/54 slot (also supports ExpressCard/34)

External Ports

    * 1 VGA port
    * 3 USB 2.0 ports
    * 1 IEEE-1394
    * 1 RJ 11 modem connector
    * 1 RJ 45 Ethernet connector
    * S-video TV out
    * Remote control infrared port (Remote Control optional)
    * 1 Headphone-out w/ SPDIF Digital Audio, 1 Microphone-in port
    * Cable docking connector

Dimensions 26.39 cm (L) x 35.78 cm (W) x 3.50 cm - 4.40 cm (H)
Weight 2.98 kg (6.6 lbs)
Power

    * 65 W AC Power Adapter
    * 6-cell Lithium-Ion (Li-Ion) battery