wireless access suddenly broken not fixed

[Paul Scott <paslist@ultrasw.com>]

I still don't have wireless access from sid potentially from an 
upgrade.  This was discussed in a recent thread with no conclusion.  I 
have no idea for further diagnosis.  ifup eth1 gives:

Error for wireless request "Set Mode" (8B06) :
   SET failed on device eth1 ; No such device.
Error for wireless request "Set Encode" (8B2B) :
   GET failed on device eth1 ; No such device.
Error for wireless request "Set ESSID" (8B1A) :
   SET failed on device eth1 ; No such device.
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sit0: unknown hardware address type 776
eth1: ERROR while getting interface flags: No such device
sit0: unknown hardware address type 776
Bind socket to interface: No such device
exiting.

Any more ideas?

TIA,

Paul Scott