adding a page to the information sidebox

Ok, I'm using the "About Us" module in the downloads section.

But I'm stuck on #4 step which is:

4. The link to the about_us page has already been added to the information sideboxe or your can add it to another location as desired.
   The URL for it is either:

   • zen_href_link(FILENAME_ABOUT_US)
     or
   • http://www.mysite.com/index.php?main_page=about_us

   HERE'S AN EXAMPLE ON HOW TO ADD TO THE "information" SIDEBOX:
   a. edit /includes/modules/sideboxes/MYTEMPLATE/information.php
   b. add this line, perhaps right above the "Shipping" link (FILENAME_SHIPPING):

   $information[] = '<a href="' . zen_href_link(FILENAME_ABOUT_US) . '">' . BOX_INFORMATION_ABOUT_US . '</a>';

   c. Upload these changes to your server, and the link will appear in your "information" sidebox.

Could anybody please help me figure out the exact code I need to type in there? I'm trying to input it above the shipping link. And I'm also calling it the "Order Info" link instead of "About Us".

Thank you so much for your help.