NOOB Question when i search and click on a film...

You can look at the "Latest" column to see when the post/last reply was made. If it's more than a few days old, then yes, it's archived from IMDB.

Yes, except those who are less than ca 5-6 days old.

You can also check if a post is old or new by hovering your mouse over the poster's nic. If it says only "moviechat/user/" it's an old post. Posts by site members have additional info behind "moviechat/user/".