The content you create in Power CMS is stored in a database. after creating the content in power CMS you need to add the code from the developer notes secion of the content detail page to your pages where you want that content to display.
For example, if i create contetntusing the Page Name "test" and the content name "test" the code used to display that content in my php page is:
echo WA_getCMSContent($database_localhost, $localhost, 'test' , 'test');
the include path above is unique to my site set up, you can get the correct code to use on the content details page.