The Zen Cart Administration is one complicated and daunting interface. There's so many settings and gadgets that it is very hard to master it unless you work full-time for a long time. I know. I'm Delia and I've been working Zen Cart full-time for 2 years and using it for about 8. I still don't know where everything is or what setting does what in the Zen Cart admin. It's simply a continuing education!
So we have developed a searchable database for the Zen Cart admin and have added a number of extras in to our AllThingsZencart.com. Not only is there admin info and settings but we have also set up Zen Cart tutorials - and will be adding to this list quickly as training tools for us and easy access for you.
The entire Zen Cart admin has been entered into the database - you should be able to use the search function or the drill down search page to find anything you need if it is in the default Zen Cart 1.3.9h or 1.5x.