[Dovecot] UW-IMAP to Dovecot conversion - How to migrate the folders?

[Patrick - South Valley Internet]

Hi all,

I've read so much information on this that I'm a little confused as to 
what to follow.  Here's what's going on:

We just migrated away from our AIX machines which were running Postfix 
and UW-IMAP.  We're now running Postfix with Dovecot.  I already 
converted everyone's mbox file to maildir, but now I'm having a little 
troubles with how to exactly populate their IMAP folders.  People are 
saying they cannot see their folders.  These 'folders' they are talking 
about can be found in their /home directory.

I have the following URLs I've been looking at:
http://wiki.dovecot.org/Migration/MailFormat
http://people.redhat.com/rkeech/maildir-migration.txt
http://wiki.dovecot.org/Plugins/Convert
http://www.dovecot.org/list/dovecot/2007-June/023757.html

What would be the suggested method to convert them?  So far I understand 
that I need to somehow populate the /home/USERNAME/Maildir/subscriptions 
file with the items located in /home/USERNAME/.mailboxlist and then I 
don't know what to do from there.  I don't know if I need to incorporate 
a Dovecot plugin, or if there is a script I can run to do this for me.

Since this is a live server, I would prefer to test on a single account 
before I run a plugin that would effect all users globally.

Any help would be very appreciated - thanks in advance!

Patrick