As I understand it, messages will sit in the Outbox until the recipient logs in, after which it will move to their inbox.
The "admin" user isn't a manned account. It's used to install the forum software, after which proper user names are created and then given admin status, thus ensuring all admin functions are logged by name and there is no anonymous admin usage through a shared "admin" account.
If you wanted to resubmit the PM to either Joanna, masch or myself we can look into it.
