Use the Facebook Like Button in your blog with this highly customizable WP plugin via iFrame or FBML. Shortcode enabled.
Please make sure that the theme is supporting XHTML. Open the header.php file of your theme and check the html-tag which should look like:
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
Yes, you can override the following options: 'layout', 'show_faces', 'width', 'action', 'colorscheme'
You can use the kouguu_fb_like.po file located in kouguu_fb_like/language to translate the short language file with POEdit or another editor. Please share your translation and mail it to firstname.lastname@example.org so we can make it available for all users.