I have installed 12.04 on a DELL LATITUDE D610 but cannot get the wireless card to enable. I have tried to install the drivers "bcwml5.inf" with no success.

below is the output of lshw -C network

kaitlyn@KO:~/bcm43xx$ sudo lshw -C network
description: Ethernet interface
product: NetXtreme BCM5751 Gigabit Ethernet PCI Express
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 01
serial: 00:12:3f:06:24:50
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 duplex=full firmware=5751-v3.29a ip= latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:16 memory:dfcf0000-dfcfffff
description: Network controller
product: BCM4318 [AirForce 54g] 802.11a/b/g PCI Express Transceiver
vendor: Broadcom Corporation
physical id: 3
bus info: pci@0000:03:03.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=b43-pci-bridge latency=64
resources: irq:17 memory:dfbfe000-dfbfffff
*-network DISABLED
description: Wireless interface
physical id: 2
logical name: wlan0
serial: 00:14:a5:4b:09:cf
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=b43 driverversion=3.2.0-31-generic-pae firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg