Sandra,
A quick answer to your last question is to first make sure you have a copy of the english.php file that resides in the /includes/languages dir in your custom dir (includes/languages/CUSTOM) so you won't overwrite english.php during a Zen upgrade...then search for:
define('BOX_HEADING_INFORMATION', 'Information');
in your includes/languages/CUSTOM/english.php file. Change the 'Information' to whatever you want and that will be the header for the box. Same for the More Information box...that should be a couple of lines below:
define('BOX_HEADING_MORE_INFORMATION', 'More Information');
See my link below as I have renamed my boxes to Customer Service and Services.
Also, in the "unset($more_information);" section of the english.php is where you can add links for the box. There should be some there already, so you can copy them and change. Make sure all is just right with uploading the proper files for the about us contrib to work. I think that might clear up some of your errors.
I am a little rusty on this contrib, as per my previous posts here, I moved to the EZPages contrib built into v1.37. Make it much easier to create custom pages on the fly....hope it helps