Installed 8.04 on AMD64, now WiFI gone(!)

WiFi was working on 7.10 but upgrade to 8.04 broke it, somehow.

After install "Hardware Drivers" showed the Broadcom needing restricted drivers:

System > Administration > Hardware Drivers:
under: Device driver
           Broadcom B43 wireless driver ...

The column labeled "Status" already had a green 'check mark' with "In Use" label
The column labeled "Enabled" was blank and I checked it...

After this the module 'b43-fwcutter' was installed and run. The 'details' showed
the program downloading a driver and sucessfully extracting firmware from the driver.

Examining /lib/firmware shows that folders 'b43' and 'b43legacy' were created and
the extracted firmware is in them - in agreement with the new style for storing
firmware files for wireless in Ubuntu/Linux ver. 2.6.24+.

The problem is that the the driver doesn't show any wireless networks - not even the one I've been using
which is on the same desktop !

TROUBLESHOOTING:
(https://help.ubuntu.com/8.04/internet/C/troubleshooting.html)

1.) check for driver.

I find that Ubuntu sees my chip (BCM4306):

james@black:~$ lshw -C network
WARNING: you should run this program as super-user.
  *-network:0
       description: Network controller
       product: BCM4306 802.11b/g Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: c
       bus info: pci@0000:00:0c.0
       version: 03
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master
       configuration: driver=b43-pci-bridge latency=64 module=ssb
  *-network:1
       description: Ethernet interface
       product: VT6102 [Rhine-II]
       vendor: VIA Technologies, Inc.
       ...

2.) CHECK DEVICE IS ON

The "suggestion" to run "sudo lshw -C network" seems silly, since I just did it in step #1 above.

The problem is that the output from "lshw" (above) doesn't tell me if the device is On or Off !

I see the "WiFi LED" on my keyboard is ON - ... BUT ... the "magic key" that (usually) turns it On / Off
doesn't make it change to Off - so is the LED being "On" true ??

The output from "lshw" doesn't tell me and the button's being "dead" doesn't make me feel any
more confident.

Since Network Manager doesn't see any wireless signals it seems pointless to proceed to looking
for a connection to a router(!) the next step in troubleshooting.

Does anyone know why Ubuntu 8.04 should install without any problem and yet not see wireless
signals for working hardware that were working under 7.10?

Where is Hardy falling short?

What part of the install needs fixing?

There were problems in the 6.xx release and I was happy when 7.10 fixed them painlessly. Now it seems
we've 'advanced' to where the previous has been lost!

Thanks for help, especially from another 8.04 / Broadcom / AMD64 user who had this and has managed
to overcome this installation problem with the wireless.

James