Questions regarding ispCP config

[ephigenie]

You'll have to regenerate the configs for apache.
A status "change" should do so (in combination with calling ispcp-rqst-mngr manually)

set this on every domain, subdomain, aliasdomain.

Courier, Postfix, proftpd should work without a problem.
But your bind needs to be updated, too (but thats normaly done via the status "change").

Thats what comes to my mind right now.