Pagination not working

Hello, i′m a bit noob regarding wordpress core changes.
I downloaded a theme and pagination is not working, giving me a 404 page.
I tried disabling the plugins and it din′t fix it, also permalinks didn′t fix it.
Here′s my loop:

<?php get_header(); ?>

<?php if(get_option('gear_home') == "cars") { ?>
<?php include (TEMPLATEPATH . '/lib/listhome.php'); ?>
<?php } else { ?>

<div id="wrapper">

<div id="topcover">
<?php include (TEMPLATEPATH . '/top.php'); ?>
</div>

<div id="casing">
<div id="content">

<?php
$temp = $wp_query;
$wp_query= null;
$wp_query = new WP_Query();
$wp_query->query('paged='.$paged);
?>
<?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>	

<div class="post" id="post-<?php the_ID(); ?>">

<div class="title">
	<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h2>
</div>
<div class="postmeta">
	<span class="author">Posted by <?php the_author(); ?> </span> <span class="clock">  <?php the_time('M - j - Y'); ?></span> <span class="comm"><?php comments_popup_link('0 Comment', '1 Comment', '% Comments'); ?></span>
</div>

<div class="entry">

<?php
if ( has_post_thumbnail() ) { ?>
	<a href="<?php the_permalink() ?>"><img class="postimg" src="<?php bloginfo('stylesheet_directory'); ?>/timthumb.php?src=<?php get_image_url(); ?>&h=150&w=200&zc=1" alt="" /></a>
<?php } else { ?>
	<a href="<?php the_permalink() ?>"><img class="postimg" src="<?php bloginfo('template_directory'); ?>/images/dummy.png" alt="" /></a>
<?php } ?>
<?php wpe_excerpt('wpe_excerptlength_index', ''); ?>
<div class="clear"></div>
</div>

</div>

<?php endwhile; ?>

<div class="clear"></div>

<?php getpagenavi(); ?>

<?php $wp_query = null; $wp_query = $temp;?>

</div>
<?php } ?>

<?php get_sidebar(); ?>
<?php get_footer(); ?>

Any help will be appreciated
Regards,

[ https://codex.www.ads-software.com/Forum_Welcome#No_Bumping ]