Module diplay of the Products page

On my Hikashop Products display, I have display of the product divs to be non-centered. I.e. in the Hikashop->Display->Content Modules->Module_Name->Parameters for Div->Text Centered = "No". However, the text is still being centered. Is that the right place for selecting that the text should not be centered?

Second question, I am selecting my product page to display descriptions as well. But I do not want the entire product description to appear here, but just a preview with perhaps a "Read More" link to appear here. Is there a way to do that? That is, I want the product image, name and a fixed height description of the product on this page ( www.witnessdvds.com/index.php?option=com...ut=listing&Itemid=53 ) such that all the products look uniform. Is there a way to do that?

Thank you.

Thank you Nicolas. As usual you hit the nail right on the head. Your suggestions work perfectly.