Good news, the problem might be hardware related.
With the daily installer from the 12th of February, and if
I only have three or fewer CPU inserted in the v440 initial boot and
network detection works!
It surprises me that with Solaris, or Debian Etch netboot,
I can use four CPU, but with daily only three or less.
Someone more kernel / HW knowledgeable might understand that :)
However, I can report that the problem with the Cassini Oops which exists
in Debian Etch netboot is gone with daily.