I've looked on your site to see if you have already covered it - but I did not find anything. Is it possible to create a "sign-in" link that allows multiple people (who have their own username/password) to sign in to a "secure" page? It does not need to be secure in a full-proof sense, just in that they only have access via their username/password. I am aware that Apple provided a username/password option (and you have mentioned connecting to site within a site), but that means everyone would have the same username/password - which won't work for this particular need.
I also realize this may involve the use of MySQL of which I know nothing about. I have purchased a hosting plan via GoDaddy which supports it, but I don't know if iWeb can make it work, or if I would have to use something more like Dreamweaver. I am graphic designer, and only know a little about html, so don't assume anything! Thanks in advance for you for time.