Dear Bob and all,
Thank you for telling me the problem.
I would clarify that except not allowing the guests to post message, we don't restrict them viewing the photos uploaded into the HKBWS server (except the "members only" and some special forums).
After checking the permission setting of some forums, I found that it was due to the default setting for only allowing registered members to post messages in the forum. I have changed their permission setting at once so as to allow guests viewing the photos now.
If you still see the problem exists in any forum, please tell me at once.
Thank you very mcuh.
Regards,
Forrest FONG
HKBWS IT Group