I too spent the better part of today trying to get my Dell E1505/6400 laptop wireless card working. It has the Dell 1390 (BCM4311)
I followed this to the tee:
http://nextgen.no-ip.org/~andrew/lin...erinfo-gui.php
All is working well now. No need to 'blacklist' any drivers or use fwcutter.
Thought this may help some others.
Edit: Sorry I am using Suse 10.3 and not Debian