dovecot - Aug 2007 - Migrating from imapd to dovecot - how to keep user's Mail folders

Hi all,

We're migrating off our current mail server with runs postfix and imapd 
on an AIX machine to Postfix and Dovecot running linux.  Our customers 
have a lot of IMAP folders with folders they configured, which are 
currently located in their /home directory on the current mail server.  
The new mail server will have them at the same location.

How do I configure Dovecot so that when a customer connects via IMAP 
using their favorite e-mail client, that the folders will be there?

Thanks in advance.

Patrick