Help with making wireless work on Gutsy with Broadcom4306

[Kristian F]

Aim:
make the Broadcom4306 wireless card work on a Ferrari3400(AMD
x64)running Gutsy.

Description:
- when pressing the wireless button on the laptop the correct wireless
network show up in gnome-network-manager but the icon still shows an
orange exclamation mark
- when running pppoeconf it can not find any network on eth1, which
should be the right one
- wired network works fine even though the exclamation mark in the
gnome-network-manager is still present...sometimes the exclamation mark
disappear though  (?_?)

Troubleshooting attempts:
- tried with the restricted driver (System>Administration>Restricted
Drivers Manager) without luck.
- tried fwcutter suggested by
https://help.ubuntu.com/community/HardwareSupportComponentsWirelessNetworkCardsBroadcom which I installed, but after rebooting it still did not working. (Perhaps there are other steps I did not do though?)
- have tried earlier with this script
http://ubuntuforums.org/showthread.php?t=405990 but that screwed up the
whole network manager.

Specs:
sudo lshw -C network
  *-network:0             
       description: Wireless interface
       product: BCM4306 802.11b/g Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 9
       bus info: pci at 0000:00:09.0
       logical name: eth1
       version: 03
       serial: 00:0b:6b:4b:e5:46
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master ethernet physical wireless
       configuration: broadcast=yes driver=bcm43xx
driverversion=2.6.22-14-generic latency=64 link=no module=bcm43xx
multicast=yes wireless=IEEE 802.11b/g
  *-network:1
       description: Ethernet interface
       product: NetXtreme BCM5788 Gigabit Ethernet
       vendor: Broadcom Corporation
       physical id: b
       bus info: pci at 0000:00:0b.0
       logical name: eth0
       version: 03
       serial: 00:c0:9f:5b:47:50
       size: 100MB/s
       capacity: 1GB/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm vpd msi bus_master cap_list ethernet physical
mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3
driverversion=3.77 duplex=full firmware=5788-v3.03 latency=64 link=yes
mingnt=64 module=tg3 multicast=yes port=twisted pair speed=100MB/s

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11b/g  ESSID:off/any  Nickname:"Broadcom 4306"
          Mode:Managed  Frequency=2.472 GHz  Access Point: Invalid   
          Bit Rate=1 Mb/s   Tx-Power=15 dBm   
          RTS thr:off   Fragment thr:off
          Link Quality=0/100  Signal level=-256 dBm  Noise level=-256
dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

ppp0      no wireless extensions.

uname -r
2.6.22-14-generic

I'm still searching around the web trying to get it to work but any help
or hints which can put me in the right direction are greatly
appreciated.

/Kristian