Uses XML MiniSlideShow to display random images in the sidebar
Unpack content in modules folder.
Activate the module: Login -> Admin -> Modules. Check the box next to the module. Click update at the bottom of the page.
Admin -> Appearance -> Manage sidebar. Verify that the Random Image Ex is moved from the 'Available blocks' to 'Active blocks' and in the order you desire with other blocks.
If "Random" RSS type is used, rss_extra/random feed need to be enabled in RSS Extra Module