Exactly before one year, I was doing a shopping cart project in Zen-cart. I had to display ‘All Products’ and ‘New Products’ listing in column/grid layout. The default layout was row layout. Then I searched if there was any addon which could help in my problem. But I couldn’t find any. The response that I got in zen-cart forum was to change/modify the code of zen-cart files. And I did it. :)
I had posted the solution in zen-cart forum. Follow the link below:-
http://www.zen-cart.com/forum/showthread.php?t=81638
Have fun with Zen-cart !!!