Move Mails with Folder Structure

I have recently imported all my mail from Eudora. The AutoArchive and Archive
do not work on the receive date because of this.

So I need to use the modified date and use the advanced search to find mail
from a particular year.

Once I got all the mail from 2005, I want to move them to a .pst file I will
use for archiving.

The problem is that moving mails from the advanced search results, to a
plain .pst will result in the loss of all the original folder structure I
have in my source .pst.

Is there any way to move or copy mails from the advanced search result
window to a plain .pst folder and have also copied the structure of the
original .pst in the process?

Thanks and regards,

Roman Valoria.