Your docs to get imapd working under the latest release of 
php failed miserably including zend optimizer compilation.
I could not even compile apache support with this version
on  a fresh install of slackware(newest version).
Your latest best release is still beta2. At least imapd did  not bitch at me
when i compiled it in. I had to go through the source code to pub
clients in right place to keep it going. SO please fix your imap code
and zend optimizer code for latest slackware version. Thanks.