Hello,
Sorry my bad for not explain in details.
Once you've enabled the indexing based on username, then go to your Joomla backend under components -> smart search ( this is the Joomla com_finder component ) and click on the purge button on top of the page. Please see
http://screencast.com/t/zAfisRAj
After your indexed items purged, you then click on the 'index' button on the same page. A popup window will be showing the indexing progress is going. Please see
http://screencast.com/t/DhyFQpqt
After the re-indexing process done, you can then filter the content type to see your indexed items. Please see
http://screencast.com/t/G9ZYwGNIsKR
Anyway, just for your information, EasySocial search is actually utilising Joomla smart search feature. By this way, you can search anything that you've indexed with Joomla smart search from EasySocial
Hope this help and have a nice day