Problem about display product in home page?

[ultra_cat]

Hi all friends!
I used Virtuemart module to display product in home page, I set in module "Product per row" = 3, but it only 1 product per row, if I set "Show Add-To-Cart Link?" = yes, it will 3 product per row,but I do not display Cart-link, Please help me this problem, I search many topic in forum but I can not solve, I am using virtuemart 2.06, joomla 2.5.6, template yourshop of  GavickPro, mysite: http://mientay.net/shop. Thank you friends