You can enable featured images for posts and set their size by using the following code in your function.php file:
add_theme_support('post-thumbnails');
set_post_thumbnail_size(107, 69, true);
but this sets the image size globally for any post types. Im using wordpress 3.0 and have created my own custom post type. Is it possible to apply a different featured thumbnail sizes for different post types?
Thanks
Scott