Trixbox non-standard default ftp settings?

Folks

I mangled up my vsftpd setup and so trashed it and all ftp related configs I could find before realising that Trixbox uses a non-standard CentOS setup, but reinstalls vsftpd from the standard CentOS Base repo.

So, my question: what are the non-standard but default settings for vsftpd under Trixbox? I've found some snipits of info in these places:
http://asteriskathome.sourceforge.net/handbook/#Section_5.5
https://customer.lylix.net/knowledgebase.php?action=displayarticl...
http://trixbox.org/forums/trixbox-forums/help/ftpuser (penultimate post)
http://trixbox.org/forums/trixbox-forums/help/ftp-access-configur... (last post)
http://trixbox.org/forums/trixbox-forums/help/ftp-and-tftp-trixbo... (penultimate post)

And iirc, it seems by default there's:
a user ftpuser:500 /sbin/nologin with password asteriskftp and home directory /var/ftp. Under /var/ftp is standard pub and non-standard default cache (iirc) with permissions set different between them (can't remember what).

(It seems this account & set up is used for provisioning Polycoms?)

There's the standard ftp account too.

Is anyone able to help with a definitive default setup?

Many thanks,
M.