Hi my friends

I have Dell Vostro 1015 with Broadcom Wireless Card, am not able to install the driver

Code:
root@bt:~# lspci -vvnn | grep 14e4
0c:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)

any ideas ??