Hi!

1. What is the relationship between the portal users and the profiles?
(If i import a couple of profiles from an AD, then they will become
portal users?)

2. You can create a new portal on an existing virtual server (web site) in
IIS.
This directory will be then controlled fully by SharePoint? (For example:
if I copy a jpg file into the home directory of the site, I can not
browse it the regular http://localhost:<port>/image.jpg manner.)

Thanks in advance,
Kol