Not sure if this is the best place for this post, apologies if it should be placed somewhere else.
I have set up PHPBB 3.0.11 with the Classifieds mod. When viewing ads, there is an AddThis include to share/Like the page/listing with other sites, like Facebook. When using the Share option with Facebook, I get the page link and description to show up just fine in the pop up window, but the Facebook scraper won't pick up the listings thumbnail image to be included.
I have tried using the AddThis toolbar, with the same results.
I really know nothing about the Addthis or Facebook programming, API's. Between those, PHPBB and the mod, anyone have any suggestions what I can do to get thumbnails included in the Addthis set up?