While it sounds simple, what you are asking would be quite complex using outlook alone, not to mention using Access.
What you are requesting is more of a Custom "Project":
Mointor the inbox
Importing Acttachments
Archiving Emails
...than a single question requiring a straightforward answer.
There may be Experts here willing to help you with various parts of this though....
Check out this resource for all things Outlook:
http://www.outlookcode.com/;-)
JeffCoachman