Does anyone know if Lululemon.com is using a pre-built existing solution like oscommerce? For example take a look at http://shop.lululemon.com/products/category/women-sports-bras?mnid=mn;women;tops;sportsbras. I am trying to figure out if their using a custom cart or pre-built solution (something that is open source)? The reason I ask for is because we like how the listings appear. I am not sure if Oscommerce or Zen cart can return the listings like that.