Am wanting to use a free template (html +js) that uses a grid. Need to change columns to different widths and not sure how to do this. Template is

http://www.hiwebtemplates.com/free-w...l#.Utrxs9Je6uU.

Need left column to be fixed width 135px, middle content 522px and right column 266px. Website is for not for profit sporting club.

Payment method/ details: Can pay with Paypal.