Imap spool directory

[Shelley Waltz]

I just created a new cyrus-2.3.7-2 server on RHEL5.  I created the
/etc/imapd.conf and started up /etc/init.d/cyrus-imapd start.

On my old cyrus-2.2 server, the /var/spool/imap  has all the directories
for the user's mail files under a b c ...

Question is ... I specified /var/spool/imap as the sppol directory in
imapd.conf. however, when I started cyrus, no a b c ... directories were
created.  Does this only happen as I add accounts or migrate accounts?

thanks
S