AbleCommerce Shopping Cart Software

Ok.. I am trying to write and expression to show an Image that indicates an item is on sale by using the Specials Start and End date. Something along the lines of... if StartDate < system.date < EndDate show sale image

Well if the sales date is specific to products then you need to have that date information on product level. Perhaps you can do some custom coding and utilize product custom fields to add two custom fields for date period. And finally you can modify desired category page to to see if current date is within sales period by checking from and to dates in product's custom fields you can show/hide your sales image.