Hi Daniel,
Thanks & glad you like the module. There are a couple of things that might help:
First you need to get ECB to store it's data in the default content block:
{content_module module=ECB2 field=some_field_type block=content_en ...}
Then depending on the field type used, the contents will either be a simple string, or in json format, e.g. for gallery or group types. In that case you simply need to decode the json data first:
{page_attr key='content_en' page=$child.alias assign='content_from_childpage'}
{$content_from_childpage=$content_from_childpage|json_decode}
<div>{$content_from_childpage|print_r}</div>{* content you want might be in an array of objects *}
Another gotcha can be if you use any modules that replace the default content block 'content_en' with their own output for the page. You can get around that by not using content_en (and hide that on another content manager tab - e.g. options) and then test if content_en is blank or not. You may not need to deal with such - so just ignore this paragraph
