This plugin create a widget which will display a configured post type (From Custom Post Type – WordPress 3.0) with its featured image. You will also get a drop down list of post titles posted in that type. Select a post type and click go. Using Ajax it will load the selected content.
You can use this plugin to display a post types with image . This plugin uses Jquery for ajax. It is working with wordpress 3.0 only. Because custom post type is introduced in wordpress 3.0
I taken codes from
BNS Featured Category Plugin
|Plugin with multi-widget functionality that displays most recent posts from specific category or categories (set with user options). Also includes user options to display: Author and meta details; comment totals; post categories; post tags; and either full post, excerpt, or your choice of the amount of words (or any combination).|
|Version 1.7 | By Edward Caissie | Visit plugin site|
Ajax Categories Posts Dropdown
|Plugin and widget that creates an easy to use Ajax dropdown of all categories. After selecting a category all posts of this category are shown in the next dropdown.|
|Version 1.0 | By Jay Schmidt | Visit plugin site|
To Make ajax and to make a widget. Happy Hacking wordpress .
You can download the plugin from wordpress. or here featured-post-type
Old Version Here ->featured-post-type.
This plugin is only for wordpress 3.0
You can view a working demo in osakaair.com