How to move 'Add to Cart' higher up the page?

Hello,

Could you give me an idea about which file I need to edit to change the order that the K2 Store 'Add to Cart' button appears in, as it comes last on the page after long descriptions at the moment, whereas an extra 'Add to Cart' near the top of the page would be more alluring.

There are a lot of php files used and I can't track down the one that would make the appropriate changes.

Many thanks,
Eduard

anyone solved this?