<div id="nav-below" class="navigation">


<div class="navi-next"><?php next_image_link( true, ' <div align="right" style="text-align: right;"> <img src="http://siteadresi.com/wp-content/uploads/2015/01/sonraki.png" alt="sonraki resim" /></div>' ); ?></div>

<div class="navi-previous"><?php previous_image_link( true, '<div align="left" style="text-align: left;"> <img src="http://siteadresi.com/wp-content/uploads/2015/01/önceki.png" alt="önceki resim" /></div>' ); ?></div>


</div><!-- #nav-below -->
</div>

dener misin.