[Dovecot] Manually creating folders from terminal

[A. J. Giurato]

I'm trying to use a script to create a mailbox structure.  I'm aware that the structure should look like:
~/.maildir/.INBOX/{cur,tmp,new}
~/.maildir/.INBOX.Subfolder1/{cur,tmp,new}
~/.maildir/.INBOX.Subfolder2/{cur,tmp,new}
~/.maildir/.INBOX.Subfolder2.Subsubfolder1/{cur,tmp,new}
...

I have tried manually making those directories and using the "maildirmake.dovecot" command that my system has.  I feel that in the past, folders I have made this way worked.  However, now none are showing up in my clients.

In Thunderbird, they aren't even listed on the "Subscribe" window for me to enable.  Using Squirrelmail doesn't show them either.

Essentially what I am doing is taking my current IMAP dir structure, and making a copy in a subfolder called ".INBOX.Archive.<year>" to archive my old mail.  Thus, .INBOX.Subfolder1.Subfolder2 becomes .INBOX.Archive.2009.Subfolder1.Subfolder2.

My system:
Ubuntu 8.04

# 1.0.10: /etc/dovecot/dovecot.conf
log_timestamp: %Y-%m-%d %H:%M:%S
ssl_listen: *
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/imap-login
mail_privileged_group: mail
mail_access_groups: mail
default_mail_env: ~/.maildir
mail_location: ~/.maildir
auth default:
   mechanisms: plain login
   passdb:
     driver: pam
   userdb:
     driver: passwd
   socket:
     type: listen
     client:
       path: /var/spool/postfix/private/auth
       mode: 432
       user: postfix
       group: postfix