PowerCMS is just providing the content that will appear on your pages. The content that you see on the pages will be separate from the details for your items. You can put the PowerCMS code snippets on any page in your site and use eCart on those same pages without issue.
For example, if you have a page that introduces the user to your store and items all of this messaging can be created in PowerCMS. When you see the listing on the pages for the items this will done with the eCart functionality. In this case you can have the dynamic page content from the CMS and a dynamic listing from using a recordset with the add to cart server behavior.
So the eCart and PowerCMS can be used together but you will not be adding items to your site with Power CMS, just the content.
