CuvixSystem

Featured Image Widget Slider is a plugin by which you can get 10 newest featured image from a selected category in a sidebar widget as a slider you can set width and height of slider also. On Click slider image related post of the featured image will open.
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Featured Image Widget Slider

Get 10 newest featured image from a selected category in a sidebar widget as a slider.

Ranjith Siji

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
Ajax Categories Posts Dropdown 
* Copyright 2009-2010 Ranjith Siji (email : ranjith.sajeev@gmail.com)
This program is free software; you can redistribute it and/or modify 
 it under the terms of the GNU General Public License version 2, 
 as published by the Free Software Foundation.
You may NOT assume that you can use any other version of the GPL.
This program is distributed in the hope that it will be useful, 
 but WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
 along with this program; if not, write to the Free Software 
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The license for this software can also likely be found here: 
 http://www.gnu.org/licenses/gpl-2.0.html

Featured Post Type

Displays most recent posts from a specific post type and a drop down to select previous entries.

Featured Image Widget Slider vs Featured Post Type