Thanks,
--Jonathan
To enforce this at the server, you will need to set the appropriate ACL.
What you want to do is DENY the write-properties privilege to ALL on
the content in question. Note that such an ACE (access control entry)
will always be overridden by a protected ACE that grants ALL privileges
to a resource's owner, so you yourself will still be able to move the
content, as well as change its ACL.
See Chetan's prior email for an example on how to set an ACL.
Tim