> There is a read password ("Read Password=..." entry in elogd.cfg) on
> the logbook which I cannot bypass from the client.

This is correct. The elog utility works with write passwords and user level access
(specifying a password file), but not with read passwords, that's not implemented. Use a
password file and you should be fine.

> There is a required attribute called "Publiek", and it's defined as
> MOptions. Whenever I try to upload, I keep getting the message that 
> it misses this attribute.

Your problem is that you try to combine a MOptions with a "-r <n>" (reply-to) option. I
have never tried that and found there is a problem. I changed the way MOptions are
submitted. Instead of using <name>_0, <name>_1 etc, you can now do a 

-a "<attrib>=<value1> | <value2>"

This also solves the problem with the "-r" option. You have to upgrade elogd.c from CVS.