NX6125 Wireless Problem

[Youb Raj Basnet]

I own Compaq nx6125 which was brought from Germany. I used laptop for wireless internet connectivity. Later, I used external wireless device as I got intermittent wireless connection. On December 2007, I got problem in XP and reinstalled using recovery CD. I, then got problem in my wireless. I even can not see wireless device in device manager. I tried downloading software from HP site but the software did not work either. I tried broadcom wireless device and various others but did not work. LAN works perfectly.

My problem is:
I am unable to install inbuilt wireless device, resulting the button in quick lunch bar does not work either.

Can anybody help me in choosing appropriate driver and installing the wireless driver in my laptop?
Youb Raj