* edit * - Pretty new to wordpress here and I've been working on getting post-thumbnails working using featured images...My goal is to quickly apply the featured image as a post thumbnail, regardless of which theme I am using....I've been editing the Twenty Eleven theme and it seems that the featured images only applies to the main header image, or at least any post I have added a featured image to, the image doesn't show up as a thumbnail. I did a little research and I have found some people saying that featured images in Twenty Eleven only update the main header image...I have tried a couple of plugins that didn't work with a couple of different themes.
Because I am new to WP and haven't really learned which features can easily be implemented via plugins and which require PHP editing, I have a couple of questions:
Am I right to think that featured images work differently depending on which theme you have installed?
Am I over looking something real easy, like a popular plugin that solves this issue?
Any help would be greatly appreciated. - * end edit *