Can you associate archived items with contacts so that the archived items are reflected on a contact's Activities tab?
The Activities tab lists related items that reside in the folders designated for the currently displayed activities group. You can modify the settings for an activities group or add a new activities group on the Activities tab of the Properties dialog box for the Contacts folder. However, a group can't contain folders from two stores. (A group also can't contain more than one folder from the Public Folders hierarchy.) Therefore, since you can't view current and archived items in the same activities group, you'll need different groups for your mailbox folders and your archive .pst file.