Meta_tag_fbtitle - Facebook Addon

[SethF]

Hi

When ever one posts a link, that is not a product page on Zen-Cart, to facebook (for example the home page of your website), instead of Facebook showing the title of your website (or the title of the page), it shows "META_TAG_FBTITLE"

I have seen another thread asking about this problem, but no proper solution was given.

Is there a solution to this problem?

Thanks for your help.
S

Edit:

Facebook will be getting the info from here:

/home/pcselect/public_html/includes/modules/meta_tags.php

Line #285 : define('META_TAG_FBTITLE', str_replace('"','',zen_clean_html($product_info_metatags->fields['products_name']))); 

How can we add the title of other pages to this?