Hey, I just uploaded a new version of this little script to manage your domains.
It's in a very early state, but it should break nothing (at least it didn't happen to me).
Just drop it anywhere you want, edit the config.php to to adapt to your environment and it should be working.
At this point you should be able to:
.- Create domains with the given hosting plan
.- Create the default ftp (examplecom@example.com) for a given domain
.- nothing else
If someone wants to try, I'll be glad to hear some advise, I'm not a programmer, so not much confident of the way I'm doing this ...
Cheers