Good news for those trying to login into their older domains!
Swordz and myself have updated the control panel to include the old domain login links, they're available on a separate url, found here:
http://www.zymic.com/zcp/index-other.php
You will find a link at the top of the standard Zymic Control Panel page linking to this page.
We apologise for those who have been locked out of their domain's control panel before this.
if you experience performance issues, we highly advise you to register for a uuuq.com and take that for a spin as it is a much faster experience.