RapBatLe on "[Plugin: WooCommerce - excelling eCommerce] Price"

Hi, i have a problem with display prices on loop page. When product have 2 prices (normal and sale) , this prices are same class and same tag. see this image in firebug image
I need to separate class for regural price and sale price , because is look bad, see this image or visit site and see this to home page site

http://wordpress.org/extend/plugins/woocommerce/