[Dovecot] imap_acl for CentOS

Hi,

I sent an email a couple of days ago asking about a problem with ACL. The bottom line was, I think, that I'm missing imap_acl plugin. I installed Dovecot 1.0.7 using yum in CentOS 5.4. Do you know where can I get the imap_acl plugin lib?

Thanks

A