Refer to my earlier posts to you: https://openacs.org/forums/message-view?message_id=3580626#3584663
In order to get this working, you're going to have to upgrade OpenACS to a newer version that has a working version of SuppressHttpPort parameter.
or..
grab the related code from Head version of these two files:
packages/acs-tcl/tcl/utilities-procs.tcl packages/acs-tcl/tcl/security-procs.tcl
cheers,
Torben