We will upgrade Silver, Tina and Platinum servers to PHP 5 tonight (3/11/2007, Sat). There won't be disruption to service, if everything goes smoothly.
Gold server had been upgraded to PHP 5 on 18/10/2007 and it is working fine.
Still, we would like to remind all clients to make sure all your PHP applications/scripts are version 5 compatible.
If your PHP application was broken after the upgrade, touch wood, please refer to PHP migration guide and consult your programmer:
http://www.php.net/manual/en/migration5.php
We are not able to troubleshoot your PHP scripts as we know nothing about it. It's your web designer/programmer's responsibility to make it PHP 5 compatible.
Than you for your attention.