Wordpress Themes - WP Forum at BFA - Cannot create widget area on category page

I've been trying to create a two cell widget area with following code

Code:

<div class="header-widget"><?php if (is_category()) { ?><?php bfa_widget_area('name=multi-top-double&cells=2&align=9&align_2=9&width_1=320&width_2=260&before_widget=<div id="%1$s" class="header-widget %2$s">&after_widget=</div>'); ?><?php } ?></div>

. It works on single post pages with the same code but for some reason, doesn't work on category pages. The widgets are not showing in the widgets page despite refreshing Nth times. I've put it under style & edit CENTER COLUMN > content ABOVE the LOOP