A backtick is shown at the bottom of the post form :P
I think those last instructions were written for a relatively old version of WordPress. As far as I know, there isn't such thing as TEMPLATEPATH anymore, that's been replaced. For the sake of simplicity, let's try this. Put all the files for jCarousel under /wp-content/plugins/jcarousel and take out everything else, you start from the beginning.
In your theme's functions.php (if you don't have one, make one and put <?php and ?> around the following), put:
wp_enqueue_script( 'jquery' );
wp_enqueue_script( 'jcarousel', '/wp-content/plugins/jcarousel/lib/jcarousel.js', array('jquery'), 0.2.3 );
wp_enqueue_style( 'jcarousel', '/wp-content/plugins/jcarousel/lib/jquery.jcarousel.css', null, 0.2.3 );
wp_enqueue_style( 'jcarousel-ie7', '/wp-content/plugins/jcarousel/skins/ie7/skin.css', array('jcarousel'), 0.2.3 );
then use the example javascript to load it in whichever page. Instead of using TEMPLATEPATH though, use get_theme_root().
I think that should work. You can't use <?php tags inside a WordPress page though without a special plugin, only templates, so it might be easier to just use the code instead.
....argh these tutorials are all horrible D: