I just installed backtrack 5 r3 and was doing some searching to find out how to get the wireless working. I also have the Intel Centrino Wireless-n 2230 chipset. I found this out two ways. In linux with lspci (as the original poster listed above). Among the output was 'Intel Corporation Device 0887 (rev c4)'. Searching that online will quickly reveal that it is the Intel Centrino Wireless-n 2230. In Windows you can go into the device manager and look for network adapters, then right-click on the wireless adapter and choose 'properties'. The 'properties' box will pop up. In the 'details' tab there's a drop-down menu under the word 'property'. Click on that and choose 'hardware id'. This showed me a string of characters and in that string was VEN_8086&DEV_0887. VEN_8086 is the vendor (Intel). DEV_0887 is the device number for that adapter. Searching VEN_8086&DEV_0887 online gave me the name of my wireless chipset and led me to the second of the two threads listed below.

Anyways, I can now see available wireless networks in Wicd (only one reboot so far, I'll post if I have any problems).
I did it with the information I found in the following threads:
.................................................. .............................
http://www.backtrack-linux.org/wiki/...hp/Basic_Usage
says:
Notice that when starting WICD you will get an error: Could not connect to Wicd's dbus interface
Then it says:
In order to get rid of this error you have to reboot Backtrack, then BEFORE starting WICD open up a terminal and type in the following:
root@bt:~# dpkg-reconfigure wicd
root@bt:~# update-rc.d wicd defaults

Now after a reboot the error should not occur anymore.
This stopped the error but still there was still nothing to connect to.
Which leads me to the next thread.
.................................................. .............................
http://www.backtrack-linux.org/forum...ad.php?t=55496

In one of the code boxes (in section 3) there is a command that downloads a folder (iwlwifi-2030-ucode-18.168.6.1) containing the iwlwifi-2030-6.ucode driver (aka module, in linux terms). I manually went to the site (http://distfiles.exherbo.org/distfil...18.168.6.1.tgz), downloaded it, and extracted the contents. The in a terminal I copied the driver ( iwlwifi-2030-6.ucode ) to /lib/firmware (while in the directory where the file is I used the command: sudo cp iwlwifi-2030-6.ucode /lib/firmware ).
Reboot
Then (quoted from the thread):

Next you will have to open Wicd Network Manager (default in Backtrack) go to Preferences and at the Wireless Interface ad "wlan0" (or what other interface you have) !! Reboot and now your wifi should work !!
Now ... the Aircrack tools "work" after this but at first glance:
- there is no channel hopping ... the channel is fixed on channel 1 even if you specify --cswitch (I will have to investigate further but i don`t have the time now)
- didn't test to see if injection and everything else works But I will asap !
The guys username is co4ie

I tried the command he lists to fix the audio issue but it didn't work for me.