To move the cart image up, you'll have to open up includes/templates/cherry_zen/templates/tpl_product_info_display.php, and find the chunk of code that is for the cart (its all neatly segregated into sections), and cut that chunk, and paste it below the image chunk.
As for the quantity box, each product, when you add it has an option for you to turn off the quantity box.
Then, in "configuration", "product info", you can change it so that every new product you add, will have "off" selected by default:
Product Quantity Box Status - Adding New Products
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