Catalog Images to width of store

Hi.

I want my store catalogue page to have rows of three images that align and space themselves to fill the width of the page.

I managed, with a lot of help from the forums, to get three images per row instead of four, but I would like to get it so the catalgoue images are slightly bigger and fill the width of the store page. Currently there is an image-width’s of space after the third image.

My site is: http://handmadecrafthouse.co.uk.gridhosted.co.uk/products-page/

Can anyone give me any help?

Many thanks

Tim

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