IE6 CSS HELP

Hello, im workng on a theme for a wordpress installation, it has been pretty straight forward yet i have found a problem on internet explorer 6.

i turns out that it adds some white space to the wrap on the right. i have already checked my css and it seems to me like is not related to the double margin bug of ie6, since there’s not any element that has been floated and given a margin on the same direction.

im pretty much clueless of what could it be, since both firefox, and safari, render out ok.

by the way the url is http://www.ecocar.com.co/noticias/

it maight be just something very silly that i missed, yet thank you very much in advance for you help.