When my developers FTP in to do work on the websites, the symbolic links are broken because of the chroot jail. Changing the link to ./path/to/site instead of /home/sites/path/to/site fixes the issue, but I want to change ISPconfig's settings so newly created sites create the symlink in such a fashion. How do I go about this? Also, I want to automatically add the user 'developer' to the group for newly-created sites. I've been doing it by hand but its' kind of a pain.
Have a look at the file /root/ispconfig/scripts/lib/config.lib.php, it conatins the functions that were called when a website is inserted or updated and the functions for the users too.