For anyone who'd like to help me figure out this problem with the descriptions/price/whatever not showing up

Try this.

PHP Code:
echo "<pre>";
var_dump($_POST);
exit; 
right after where you see:
//end of autofacebook
Now go and add a test product (make sure you fill everything out like you normally would however if you're images are working there is no need to upload another one, just leave it blank). After you click 'preview' and then 'insert' you should see a bunch of text. Copy it and paste it in a PM to me.

Now remove the code you added from above.

Note: this will still add the fake product to your store and facebook so be sure to delete them.