Newbie with no clue - but want to use CMS like AutoManager

Instead of Auto Manager I am trying CMS, because it uses MySQL database for storage - faster and better over the long haul for my client. I know almost know MySQL and hardly any PhP.

I installed CMS after creating a MySQL DB.
I followed the instructions all the way through, created a section called "Inventory". Set up the fields with the CMS interface, including photo uploader. Created a test record. I used the code in PhP Viewer to create a display page, I copied it exactly and saved as customPage.php and uploaded it to the root directory.

Went to my browser and I can view the page but no records display. I uploaded the customPage.php to public_html/cmsAdmin/directory and tried viewing it. I see the page in my browser but no record shows.

Site is at
http://www.customersitename.com/index.shtml/

How do I get it to display the record?
Also, how do I get the program to automatically display whatever records are created by the client without uploading new .php page every day. They turn thousands of products yearly.

Here's a sample of what I'm trying to accomplish:
http://www.competitorsiteonline.com/


Thank you.