I got a lot of emails from WordPress users and all of them asked me: “How we can show title (alttext) belot thumb image in gallery if we use WordPress NextGEN gallery plugin ?”
So if you use this code in WordPress page :
[nggallery id=x template=caption]
and you can not see title as caption below thumb image in gallery than you need to make manually fix.
Go to : Nextgen Gallery /view/gallery-caption.php and than find :
<span><?php echo $image->caption ?></span>
and replace to be :
<span><?php echo $image->alttext ?></span>
This is all. Now you will see titles below thumbnail images.
Problem is solved.
Please write your comment and suggest some other corrections.