I have the Broadcom Bcm 4311 card in my laptop, you cannot expect things to be plug and play this is not ubuntu Please sent the output from "iwconfig" this is my example.
wlan0 IEEE 802.11bg Mode:Managed Frequency:2.437 GHz
Access Point: 00:0F:66:B7:6F:96 Bit Rate=54 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thrff Fragment thrff
Encryption key:4A85-F449-B2E9-800F-48D5-DB22-9592-4D28  Security modepen
Link Quality=69/70 Signal level=-41 dBm Noise level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Also the command "lspci"
you will have to look for this type of listing
04:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
This card is supported out of the box with Backtrack 4 final in both monitor and injection capabilities