Problems with CSS

Strange problem I’m having. I’m using the Visio theme with wp e-commerce plugin. Anyway, I skinned a widget that is provided through wp e-commerce so it displays two rows of thumbnails instead of one. It worked fine on a test blog (here) but didn’t work on the real site (here), seems that the CSS isn’t being applied (ie, I can change the padding with no effect on the real site). php and CSS are below, any ideas? Thanks in advance!

CSS

div#sidebar div. item_image_right img {
float:right;
border:medium none;
max-width:none !important;
padding:100px 0pt 0pt 2px;
}

div#sidebar div. item_image_left img {

border:medium none;
max-width:none !important;
padding:100px 0pt 0pt 20px;
}

php

function nzshpcrt_latest_product($input = null) {
	global $wpdb;

	$siteurl = get_option('siteurl');
	$latest_product = $wpdb->get_results("SELECT * FROM <code>&quot;.WPSC_TABLE_PRODUCT_LIST.&quot;</code> WHERE <code>active</code> IN ('1') ORDER BY <code>id</code> DESC LIMIT 10", ARRAY_A);
	if($latest_product != null) {
		$output = "<div>";

$count = 0; 

			foreach($latest_product as $special) {			

if($count % 2 == 0){

$output.="<div>";
			$output.="<div class='item_image_right'>";
 			$output.="<a href='".wpsc_product_url($special['id'],$special['category'])."'>";
			if(($special['image'] > 0)) {

				if(get_option('wpsc_selected_theme') == 'marketplace') {
					$src = WPSC_IMAGE_URL.$special['image'];

					$output .= "				<img src='". "index.php?image_id={$special['image']}&width=100&height=75' title='".$special['name']."' alt='".$special['name']."' />";

				} else 	{
					$output .= "			<img src='". "index.php?image_id={$special['image']}&width=75&height=75'/>  ";

}
			} else {
				//$output .= "<img src='$siteurl/wp-content/plugins/wp-shopping-cart/no-image-uploaded.gif' /><br />";
			}

 			$output.="		</a>";
			$output .= "	</div>";

			$output .= "	</a>";
			$output .= "</div>";

$count++;
}

else{
$count++; 

			$output.="<div>";
			$output .= "	<div class='item_image_left'>";
 			$output.="			<a href='".wpsc_product_url($special['id'],$special['category'])."'>";
			if(($special['image'] > 0)) {

				if(get_option('wpsc_selected_theme') == 'marketplace') {
					$src = WPSC_IMAGE_URL.$special['image'];

					$output .= "				<img src='". "index.php?image_id={$special['image']}&width=100&height=75' title='".$special['name']."' alt='".$special['name']."' />";

				} else 	{
					$output .= "			<img src='". "index.php?image_id={$special['image']}&width=75&height=75' title='".$special['name']."' alt='".$special['name']."' />  ";

}
			} else {
				//$output .= "<img src='$siteurl/wp-content/plugins/wp-shopping-cart/no-image-uploaded.gif' title='".$special['name']."' alt='".$special['name']."' /><br />";
			}

 			$output.="		</a>";
			$output .= "	</div>";

			$output .= "	</a>";
			$output .= "</div>";
		}
}

		$output .= "</div>";
	} else {
		$output = '';
	}

	echo $input.$output;

}