marketpress images

Hi Again
Ok with the marketpress i need to add an image gallery to my product descriptions, so i am using wordpress gallery which adds a nice slider to the top of the products description. if i only use this, marketpress doesnt display a thumb image on the product listings, but if i add a featured image it does, but it also adds 2 images just above the gallery on the product listing. is there anyway to stop this happening?
many thanks

<img src="" border="0" alt=" photo 2013-02-19_130741_zps1ace8cf4.png"/>