dovecot - Mar 2010 - how configure quotas with dovecot and mysql databases

some one knows, how to configure quotas with  dovecot and mysql databases ?

my dovecot was compiled with:

CPPFLAGS=-I/opt/mysql/include/mysql LDFLAGS=-L/opt/mysql/lib/mysql ./
configure --with-sql --with-mysql


and my dovecot.conf and dovecot-sql.conf have the following configurations:

==========dovecot.conf
==========protocol imap  {
                 listen = *:143
                mail_plugins = quota imap_quota
                }

protocol pop3  {
                 listen = *:110
                mail_plugins = quota
                }

plugin {

quota = maildir:storage=30M
quota_rule = *:storage=30M
quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95
quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80

}

===========dovecot-sql.conf
===========driver = mysql
connect = host=localhost dbname=mail user=mail password=mail
user_query = SELECT 1 AS gid,  concat('maildir:storage=    ', quota_kb) 
AS quota
  FROM users WHERE user = 'testuser';


I test my configuration and don't show errors , however, dovecot  never 
show me my quota configuration.

I will be omitting something ?

Cheers.

-- 
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LCC Wilberth de Jes?s P?rez Segura CCSA- Administraci?n de Servicios y Seguridad
de las TI
Correo: wilberth.perez at uady.mx
Universidad Aut?noma de Yucat?n
Secretar?a General
Coordinaci?n Administrativa de Tecnolog?as de Informaci?n
RIUADY
C-59 x Av. Itz?es (999)923-74-28 Ext. 1117
M?rida, Yucat?n, M?xico 2010
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