I have just completed setting up an Intranet Site on SME 5.6.
This is what I did (I am a newbie so will stand correction).
I put my primary in /home/e-smith/files/primary/html
then I created an ibay and with the following information
information bay name secureweb
description secureweb (yes the same)
group everyone
user access etc "Write group " , "Read Everyone"
public access "local network - password required"
Execution of dynamic etc "Yes"
Then you should create the virtual domain
domain name: "secureweb.com.au"
brief description "Secure Web Site"
Content: "secureweb" (this is the Ibay)
On my intranet site (which I used frames) I have a link in the left frame it says Secure Web and the link is
http://www.secureweb.com.au when you click the link the password dialog box appears. the user name is the name of the ibay (secureweb) and the password is what ever you set.
I have not tried this on an internet site, I would have to think about getting to the secure site... see how you go and If you would like a sample of mine then e-mail me.
John A