Widget not showing correctly

This is my sidebar code

<?php
if (!function_exists('dynamic_sidebar') || !dynamic_sidebar('Sidebar')):
endif;
?>

for the dynamic side bar and in the functions i have

if(function_exists('register_sidebar')) {
	register_sidebar(array(
		'name' => 'Sidebar',
	));

the problem is whenever i have put a plugin widget in the side bar it looses its style and scripts…etc

example https://www.feebe.net < on the left the WoW armory widget has lots its style but in other themes its fine and works correctly…

what am i doing wrong i just cont figure it out :S :C