Define Folder to save Images

What is “the plugin”? Anyhow , you need to change WP_PLUGIN_URL to wp_upload_dir in your define. You can read more here: http://codex.wordpress.org/Function_Reference/wp_upload_dir

Title image is missing ( but is not the WP 3.5 issue )

you can try this filter add_filter(‘wp_get_attachment_image_attributes’, ‘my_img_title’, 10, 2); function my_img_title($attr, $attachment = null){ $attr[‘title’] = get_post($attachment->ID)->post_title; return $attr; } It should give the the extra title attribute in the img tag. You can also use the ‘post_thumbnail_html’ filter to edit the html output. ps: here is a similar question: Display info from custom fields … Read more

wp_get_attachment_link() add rel attribute if the link points to direct image

add_filter( ‘wp_get_attachment_link’, ‘sant_prettyadd’, 10, 6); function sant_prettyadd ($content, $id, $size, $permalink, $icon, $text) { if ($permalink) { return $content; } $content = preg_replace(“/<a/”,”<a rel=\”prettyPhoto[slides]\””,$content,1); return $content; } Update: function sant_prettyadd checks permalink argument. if the permalink = true then it returns the content as it is. if the permalink = false then it skips to … Read more

Some images suddenly not appearing

I had a look at your links, looks like you are using Jetpack which puts all your images on the WordPress CDN. For some reason it is not working correctly. Turn it off and it shall work properly. Most likely you must have changed the image after publishing the post

Uploading Images for a section

Try the Media Library Assistant plugin: http://wordpress.org/extend/plugins/media-library-assistant/ I’ve never used it, but it looks like you can bulk-edit media files’ taxonomies and filter them by whatever taxonomy you choose.

Custom image size doesn’t work

Your custom size will only show up as an option if the selected image exists at those dimensions. So, have you uploaded any images since adding the new image size to functions.php? If not, then you won’t see the vividflow option. You could always run regenerate thumbnails so bring your older images up to date.