> i figure the ethernet address must be
> 00:00:1D:0E:6B:1B
> what do you think?

Certainly possible.  When you can get MacsBug loaded, search the card's
memory space (0xFs000000 - 0xFsFFFFFF where s is the slot number) for
that string of bytes.  Some parts of that space are probably not
readable, so you might have to do something to look for readable
addresses.

-allen