sparklabs

Hi.
We modified the plugin to support multiple instances.

open /wp-content/plugins/wp-nivo-slider/wp-nivo-slider.php

STEP 1
find line: function show_nivo_slider() {
replace: function show_nivo_slider($number_category) {

to accept a parameter to this function that is the category you want to show.

STEP 2
find line:

$category = get_option('wpns_category');
$n_slices = get_option('wpns_slices');

replace:

$category = $number_category;
	$contpost=0;

	//get count post - sparklabs.com.mx
	query_posts( 'cat=$category' );

	if( have_posts() ) : while( have_posts() ) : the_post();
		$contpost++;
	endwhile;
	endif;

	$n_slices = $contpost;

get number of slides in the category

STEP 3
In the template where you want to display the slider placed this line.
<?php if ( function_exists('show_nivo_slider') ) { show_nivo_slider(4); } ?>
http://www.sparklabs.com.mx/wp-admin/edit-tags.php?action=edit&taxonomy=category&tag_ID=4&post_type=post.
the TAG_ID is the number.

greetings! and any matter please contact us.

Spark Labs.
http://www.sparklabs.com.mx