Well, a little update of SNAF is becoming due. THere are a couple fo other things above it on the list to be honest though....

Until then you could try altering this chunk of code in product_listing.php :

Code:
if (PRODUCT_LISTING_LAYOUT_STYLE == 'columns') {

//===========  bof SNAF (add filter dropdown to product listing)
if($show_product_listing_filter)
{
require($template->get_template_dir('/tpl_snaf_display_order.php',DIR_WS_TEMPLATE, $current_page_base,'templates'). '/tpl_snaf_display_order.php');
}
//===========  eof SNAF (add filter dropdown to product listing)
}
change the first line to :

Code:
if (PRODUCT_LISTING_LAYOUT_STYLE == 'columns' or 1==1) {
and see what happens.

I kind of think that I must have put that in there for a reason but without revisiting the code I can't remember to be honest. I'll try and have a look in the near future but it won't be in the next few days for sure.