Automatically Authenticate Users

[Nash13]

Hello,

I anonymous browsing shut off on my subweb and set up the users via
FrontPage. When people post to an Access database on this subweb, it
automatically captures their user ID. Now is there any way I can have a page
automatically query data for each user and post on a data results page based
off of that user id? If I can automatically capture it, it seems I should be
able to query off of it automatically as well.

Thank you